Lihat sumber Daftar tetapan matematis

Sebuah [[Konstanta matematika|tetapan matematika]] adalah sebuah [[bilangan]] kunci yang nilainya ditetapkan oleh sebuah definisi yang tidak ambigu, sering kali dirujuk oleh sebuah simbol (misalnya, sebuah [[Huruf|huruf alfabet]]), atau oleh nama matematikawan untuk mempermudah penggunaannya di berbagai [[Masalah matematika|masalah-masalah matematika]].<ref name=":0">{{Cite web|date=2020-03-01|title=Compendium of Mathematical Symbols|url=https://mathvault.ca/hub/higher-math/math-symbols/|website=Math Vault|language=en-US|access-date=2020-08-08}}</ref><ref>{{Cite web|last=Weisstein|first=Eric W.|title=Constant|url=https://mathworld.wolfram.com/Constant.html|website=mathworld.wolfram.com|language=en|access-date=2020-08-08}}</ref> Sebagai contoh, tetapan [[Pi|π]] dapat didefinisikan sebagai rasio dari panjang sebuah [[keliling]] lingkaran dengan [[diameter]]<nowiki/>nya. Daftar berikut ini termasuk sebuah ekspansi desimal dan kumpulan yang berisi setiap bilangan, diurutkan berdasarkan tahun penemuan.

Penjelasan dari simbol-simbol di kolom sebelah kanan dapat ditemukan dengan mengkliknya.

== Zaman dahulu ==

{| class="wikitable sortable"
!Nama
!Simbol
!Ekspansi desimal
!Rumus
!Tahun
!Himpunan
|-
|[[1|Satu]]
|<math display="block">1</math>
|1
|Tidak ada{{refn|1 dapat diberikan sebagai sebuah gagasan primitf dalam [[Aritmetika Peano]]. Secara bergantian, 0 dapat menjadi sebuah gagasn primitif dalam aritmetika Peano dan and 1 didefinisikan sebagai penerus untuk 0. Artikel ini menggunakan definisi sebelumnya yang berhubungan dengan pendidikan dan kesederhaan berturut-turut.|group=nb}}
|Prasejarah
|[[Natural number|<math>\mathbb{N}</math>]]
|-
|[[2|Dua]]
|<math display="block">2</math>
|2
|<math>1+1</math>
|Prasejarah
|[[Natural number|<math>\mathbb{N}</math>]]
|-
|[[Setengah]]
|<math display="block">\frac{1}{2}</math>
|0.5
|<math>1/2</math>
|Prasejarah
|[[Rational number|<math>\mathbb{Q}</math>]]
|-
|[[Pi]]
|<math display="block"> \pi </math>
|3.14159 26535 89793 23846 <ref group="Mw">{{MathWorld|PiFormulas|Pi Formulas}}</ref><ref group="OEIS">{{OEIS2C|A000796}}</ref>
|Nisbi keliling lingkaran ke diameternya
|1900 hingga 1600 SM<ref name="Arndt_d">{{harvnb|Arndt|Haenel|2006|p=167}}</ref>
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Akar kuadrat dari 2]],
tetapan [[Pythagoras]].<ref>{{cite book|author=Calvin C Clawson|year=2001|url=https://books.google.com/books?id=sPRbZACsXogC&q=pi+nested+radical&pg=PA293|title=Mathematical sorcery: revealing the secrets of numbers|isbn=978 0 7382 0496-3|page=IV}}{{Pranala mati|date=April 2023 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
|<math display="block">\sqrt{2}</math>
|1.41421 35623 73095 04880 <ref group="Mw">{{MathWorld|PythagorassConstant|Pythagoras's Constant}}</ref><ref group="OEIS">{{OEIS2C|A002193}}</ref>
|Akar positif dari <math>x^2=2</math>
|1800 hingga 1600 SM<ref>Fowler and Robson, p. 368.

[http://it.stlawu.edu/%7Edmelvill/mesomath/tablets/YBC7289.html Photograph, illustration, and description of the ''root(2)'' tablet from the Yale Babylonian Collection] {{webarchive|url=https://web.archive.org/web/20120813054036/http://it.stlawu.edu/%7Edmelvill/mesomath/tablets/YBC7289.html|date=2012-08-13}}

[http://www.math.ubc.ca/%7Ecass/Euclid/ybc/ybc.html High resolution photographs, descriptions, and analysis of the ''root(2)'' tablet (YBC 7289) from the Yale Babylonian Collection]</ref>
|'''''[[Algebraic number|<math>\mathbb{A}</math>]]'''''
|-
|[[Akar kuadrat dari 3]],
tetapan Theodorus<ref>{{cite book|author=Vijaya AV|year=2007|url=https://books.google.com/books?id=xAwukpHCqH0C&q=1.732050807&pg=PA15|title=Figuring Out Mathematics|publisher=Dorling Kindcrsley (India) Pvt. Lid.|isbn=978-81-317-0359-5|page=15}}</ref>
|<math display="block">\sqrt{3} </math>
|1.73205 08075 68877 29352 <ref group="Mw">{{MathWorld|TheodorussConstant|Theodorus's Constant}}</ref><ref group="OEIS">{{OEIS2C|A002194}}</ref>
|Akar positif dari <math> x^2=3 </math>
|465 hingga 398 SM
|'''''[[Algebraic number|<math>\mathbb{A}</math>]]'''''
|-
|[[Akar kuadrat dari 5]]<ref>{{cite book|author=P A J Lewis|year=2008|url=https://books.google.com/books?id=KjMVx6ljh6YC&q=2.236067977&pg=PA24|title=Essential Mathematics 9|publisher=Ratna Sagar|isbn=9788183323673|page=24}}</ref>
|<math display="block"> \sqrt{5} </math>
|2.23606 79774 99789 69640<ref group="OEIS">{{OEIS2C|A002163}}</ref>
|Akar positif dari <math> x^2=5</math>
|
|'''''[[Algebraic number|<math>\mathbb{A}</math>]]'''''
|-
|Phi, [[Golden ratio]]<ref name=":0" /><ref>{{cite book|author1=Timothy Gowers|author2=June Barrow-Green|author3=Imre Leade|year=2007|url=https://books.google.com/books?id=ZOfUsvemJDMC&q=1.618033988749894848&pg=PA316|title=The Princeton Companion to Mathematics|publisher=Princeton University Press|isbn=978-0-691-11880-2|page=316}}</ref>
|<math display="block">{\varphi}</math>
|1.61803 39887 49894 84820 <ref group="Mw">{{MathWorld|GoldenRatio|Golden Ratio}}</ref><ref group="OEIS">{{OEIS2C|A001622}}</ref>
|Akar positif dari <math>x^2-x-1=0 </math>
|~300 SM
|'''''[[Algebraic number|<math>\mathbb{A}</math>]]'''''
|-
|[[Nol]]
|<math display="block">0</math>
|0
|Identitas aditif: <math>x+0=x</math>
|300-100 abad SM<ref>Kim Plofker (2009), ''[[Mathematics in India]]'', Princeton University Press, {{ISBN|978-0-691-12067-6}}, pp. 54–56.</ref>
|[[Integer|<math>\mathbb{Z}</math>]]
|-
|[[−1|Negatif satu]]
|<math display="block">-1</math>
|−1
|<math>1-2</math>
|300-200 SM
|[[Integer|<math>\mathbb{Z}</math>]]
|-
|[[Akar kubik]] dari 2 ([[Tetapan Delian]])
|<math display="block">\sqrt[3]{2}</math>
|1.25992 10498 94873 16476 <ref group="Mw">{{MathWorld|DelianConstant|Delian Constant}}</ref><ref group="OEIS">{{OEIS2C|A002580}}</ref>
|Akar real dari <math>x^3=2</math>
|46-120 M<ref>{{cite book|author=Plutarch|url=http://ebooks.adelaide.edu.au/p/plutarch/symposiacs/chapter8.html#section80|title=Quaestiones convivales VIII.ii|section=718ef|quote=And therefore Plato himself dislikes Eudoxus, Archytas, and Menaechmus for endeavoring to bring down the [[doubling the cube]] to mechanical operations|access-date=2021-03-24|archive-date=2019-07-28|archive-url=https://web.archive.org/web/20190728214640/http://ebooks.adelaide.edu.au/p/plutarch/symposiacs/chapter8.html#section80|dead-url=yes}}</ref>
|'''''[[Algebraic number|<math>\mathbb{A}</math>]]'''''
|-
|[[Akar kubik]] dari 3
|<math display="block">\sqrt[3]3</math>
|1.44224 95703 07408 38232<ref group="OEIS">{{OEIS2C|A002581}}</ref>
|Akar real dari <math>x^3=3</math>
|
|<math>\mathbb{A}</math>
|}

== Abad pertengahan dan modern awal ==
{| class="wikitable sortable"
!Nama
!Simbol
!Ekspansi desimal
!Rumus
!Tahun
!Himpunan
|-
|[[Satuan khayal]] <ref name=":0" /><ref>{{cite book|author=Keith J. Devlin|year=1999|url=https://books.google.com/books?id=IKmMKOtSI50C&q=%22This+leads+to+some+amazing+results.+For+example,+Euler+discovered%22&pg=PA66|title=Mathematics: The New Golden Age|publisher=Columbia University Press|isbn=978-0-231-11638-1|page=66}}</ref>
|<math display="block">{i}</math>
| data-sort-value="1" |{{math|0 + 1''i''}}
|Baik dari dua akar dari <math>x^2=-1</math>{{refn|Keduanya <math> i </math> dan <math> -i </math> merupakan akar-akar persamaan ini, melalui baik bukan akarnya benar-benar "positif" maupun lebih fundamental daripada lainnya karena mereka setara secara aljabar. Perbedaan antara tanda <math> i </math> dan <math> -i </math> ada dalam beberapa hal yang sembarang, tetapi sebuah alat notasi yang berguna. Lihat [[satuan khayal]] untuk informasi lebih lanjut.|group=nb}}
|1501 hingga 1576
|[[Complex number|<math>\mathbb{C}</math>]]
|-
|Tetapan [[John Wallis|Wallis]]
|<math display="block"> W </math>
|2.09455 14815 42326 59148 <ref group="Mw">{{MathWorld|WallissConstant|Wallis's Constant}}</ref><ref group="OEIS">{{OEIS2C|A007493}}</ref>
|<math display="block"> \sqrt[3]{\frac{45-\sqrt{1929}}{18}}+\sqrt[3]{\frac{45+\sqrt{1929}}{18}}</math>
|1616 hingga 1703
|'''''[[Algebraic number|<math>\mathbb{A}</math>]]'''''
|-
|[[E (konstanta matematika)|Bilangan Euler]]<ref name=":0" /><ref>{{cite book|author=E.Kasner y J.Newman.|year=2007|url=https://books.google.com/books?id=zdBHMHV3m5YC&q=2.7182818284590452353602874&pg=PA76|title=Mathematics and the Imagination|publisher=Conaculta|isbn=978-968-5374-20-0|page=77}}</ref>
|<math display="block">{e}</math>
|2.71828 18284 59045 23536 <ref group="Mw">{{MathWorld|e|e}}</ref><ref group="OEIS">{{OEIS2C|A001113}}</ref>
|<math display="block"> \lim_{n \to \infty} \! \left( \! 1 \! + \! \frac {1}{n}\right)^n </math>{{refn|Juga dapat didefinisikan oleh deret takhingga <math> \sum_{n = 0}^\infty \frac{1}{n!} = \frac{1}{0!} + \frac{1}{1} + \frac{1}{2!} + \frac{1}{3!} + \cdots </math>|group=nb}}
|1618<ref name="OConnor2">{{cite web|last1=O'Connor|first1=J J|last2=Robertson|first2=E F|title=The number ''e''|url=<!-- http://www.gap-system.org/~history/PrintHT/e.html -->http://www-history.mcs.st-and.ac.uk/HistTopics/e.html|publisher=MacTutor History of Mathematics}}</ref>
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Logaritma natural dari 2]] <ref>{{cite book|author1=Annie Cuyt|author2=Vigdis Brevik Petersen|author3=Brigitte Verdonk|author4=Haakon Waadeland|author5=William B. Jones|year=2008|url=https://books.google.com/books?id=DQtpJaEs4NIC&q=0.6931471805599&pg=PA182|title=Handbook of Continued Fractions for Special Functions|publisher=Springer|isbn=978-1-4020-6948-2|page=182|author1-link=Annie Cuyt}}</ref>
|<math display="block">\ln 2</math>
|0.69314 71805 59945 30941 <ref group="Mw">{{MathWorld|NaturalLogarithmof2|Natural Logarithm of 2}}</ref><ref group="OEIS">{{OEIS2C|A002162}}</ref>
|<math display="block"> \sum_{n=1}^\infty \frac{1}{n 2^n}
  = \sum_{n=1}^\infty \frac{({-}1)^{n+1}}{n} 
  = \frac{1}{1}-\frac{1}{2}+\frac{1}{3}-\frac{1}{4}+{\cdots}
</math>
|1619,<ref>{{cite book|author-last=Cajori|author-first=Florian|date=1991|url=https://books.google.com/books?id=mGJRjIC9fZgC|title=A History of Mathematics|publisher=AMS Bookstore|isbn=0-8218-2102-4|edition=5th|page=152|author-link=Florian Cajori}}</ref> 1668<ref>{{cite web|date=September 2001|title=The number e|url=http://www-history.mcs.st-and.ac.uk/HistTopics/e.html|publisher=The MacTutor History of Mathematics archive|access-date=2009-02-02|author-last1=O'Connor|author-first1=J. J.|author-first2=E. F.|author-last2=Robertson}}</ref>
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Mimpi Sophomore]]<sub>1</sub> <br /> J.[[Johann Bernoulli|Bernoulli]] <ref>{{cite book|author=William Dunham|year=2005|url=https://books.google.com/books?id=QnXSqvTiEjYC&q=0.7834305107&pg=PA51|title=The Calculus Gallery: Masterpieces from Newton to Lebesgue|publisher=Princeton University Press|isbn=978-0-691-09565-3|page=51}}</ref>
|<math display="block">{I}_{1}</math>
|0.78343 05107 12134 40705 <ref group="OEIS">{{OEIS2C|A083648}}</ref>
|<math display="block">\int_0^1 \! x^{x}\,dx = \sum_{n = 1}^\infty \frac{(-1)^{n+1}}{n^n} = \frac{1}{1^1} - \frac{1}{2^2} + \frac{1}{3^3} - {\cdots} </math>
|1697
|
|-
|[[Mimpi Sophomore]]<sub>2</sub> <br /> J.[[Johann Bernoulli|Bernoulli]] <ref>{{cite book|author=Jean Jacquelin|year=2010|url=http://math.eretrandre.org/tetrationforum/attachment.php?aid=788|title=SOPHOMORE'S DREAM FUNCTION}}</ref>
|<math display="block">{I}_{2}</math>
|1.29128 59970 62663 54040 <ref group="Mw">{{MathWorld|SophomoresDream|Sophomore's Dream}}</ref><ref group="OEIS">{{OEIS2C|A073009}}</ref>
|<math display="block"> \int_0^1 \! \frac{1}{x^x}\, dx 
= \sum_{n = 1}^\infty \frac{1}{n^n} =  \frac{1}{1^1} + \frac{1}{2^2} + \frac{1}{3^3}  + \frac{1}{4^4}+ \cdots</math>
|1697
|
|-
|[[Tetapan lemniskat]]<ref>{{cite book|author1=J. Coates|author2=Martin J. Taylor|year=1991|url=https://books.google.com/books?id=aKQhpm1h770C&q=2.6220575&pg=PA333|title=L-Functions and Arithmetic|publisher=Cambridge University Press|isbn=978-0-521-38619-7|page=333}}</ref>
|<math display="block">{\varpi} </math>
|2.62205 75542 92119 81046 <ref group="Mw">{{MathWorld|LemniscateConstant|Lemniscate Constant}}</ref><ref group="OEIS">{{OEIS2C|A062539}}</ref>
|<math display="block"> \pi \, {G} = 4 \sqrt{\tfrac2\pi}\,\Gamma{\left(\tfrac54 \right)^2} = \tfrac14 \sqrt{\tfrac{2}{\pi}}\,\Gamma {\left(\tfrac14 \right)^2} = 4 \sqrt{\tfrac2\pi}\left(\tfrac14 !\right)^2</math>
|1718 to 1798
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Tetapan Euler–Mascheroni]]<ref>{{Cite web|date=2020-03-20|title=Greek/Hebrew/Latin-based Symbols in Mathematics|url=https://mathvault.ca/hub/higher-math/math-symbols/greek-hebrew-latin-symbols/|website=Math Vault|language=en-US|access-date=2020-08-08}}</ref>
|<math display="block">{\gamma}</math>
|0.57721 56649 01532 86060 <ref group="Mw">{{MathWorld|Euler-MascheroniConstant|Euler–Mascheroni Constant}}</ref><ref group="OEIS">{{OEIS2C|A001620}}</ref>
|<math display="block"> \begin{align}
\sum_{n=1}^\infty \sum_{k=0}^\infty \frac{(-1)^k}{2^n+k}  &= \sum_{n=1}^\infty \left(\frac{1}{n} -\ln \left(1+\frac{1}{n}\right)\right) \\
 &= \int_{0}^{1} -\ln \left(\ln \frac{1}{x}\right)\, dx = -\Gamma'(1) = -\Psi(1)
\end{align} </math> 
|1735
|'''''[[Irrational number|<math>\mathbb{R} \setminus \mathbb{Q}</math>]]?'''''
|-
|Analog mengenai tetapan Euler–Mascheroni
|<math display="block">{\gamma}</math>
|0.42816 57248 71235 07519
|<math display="block">\lim_{n \to \infty} \! \left(\sum_{k = 2}^n \frac{1}{k \ln(k)} - \ln \left(\ln (n)\right) + \ln \left(\ln (2)\right)\! \right) </math>
|1735 hingga 1745
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''?
|-
|[[Tetapan Erdős–Borwein]]<ref>{{cite arXiv|eprint=0806.4410|class=math.CA|author=Robert Baillie|title=Summing The Curious Series of Kempner and Irwin|year=2013}}</ref>
|<math display="block">{E}_{\,B}</math>
|1.60669 51524 15291 76378 <ref group="Mw">{{MathWorld|Erdos-BorweinConstant|Erdos-Borwein Constant}}</ref><ref group="OEIS">{{OEIS2C|A065442}}</ref>
|<math display="block">\sum_{m=1}^{\infty} \sum_{n=1}^{\infty}\frac{1}{2^{mn}} =\sum_{n=1}^{\infty}\frac{1}{2^n-1} = \frac{1}{1} \! + \! \frac{1}{3} \! + \! \frac{1}{7} \! + \! \frac{1}{15} \! + \! ...</math>
|1749<ref>{{cite book|author=Leonhard Euler|year=1749|url=http://www.math.dartmouth.edu/~euler/pages/E190.html|title=Consideratio quarumdam serierum, quae singularibus proprietatibus sunt praeditae|page=108}}</ref>
|'''''[[Irrational number|<math>\mathbb{R} \setminus \mathbb{Q}</math>]]'''''
|-
|[[Limit Laplace]] <ref>{{cite book|author=Howard Curtis|year=2014|title=Orbital Mechanics for Engineering Students|title-link=Orbital Mechanics for Engineering Students|publisher=Elsevier|isbn=978-0-08-097747-8|page=159}}</ref>
|<math display="block">{\lambda}</math>
|0.66274 34193 49181 58097 <ref group="Mw">{{MathWorld|LaplaceLimit|Laplace Limit}}</ref><ref group="OEIS">{{OEIS2C|A033259}}</ref>
|<math display="block"> \frac{ x \; e^\sqrt{x^2+1}}{\sqrt{x^2+1}+1} = 1</math>
|~1782
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''?
|-
|[[Tetapan Gauss]] <ref>{{cite book|author1=Keith B. Oldham|author2=Jan C. Myland|author3=Jerome Spanier|year=2009|url=https://books.google.com/books?id=UrSnNeJW10YC&q=%22Gauss%27s+constant%22&pg=PA647|title=An Atlas of Functions: With Equator, the Atlas Function Calculator|publisher=Springer|isbn=978-0-387-48806-6|page=15}}</ref>
|<math display="block">{G}</math>
|0.83462 68416 74073 18628 <ref name=":4" group="Mw">{{MathWorld|GausssConstant|Gauss's Constant}}</ref><ref group="OEIS">{{OEIS2C|A014549}}</ref>
|<math>\frac{1}{\mathrm{agm}\left(1, \sqrt{2}\right)} = \frac{4 \sqrt{2} \,\left(\tfrac{1}{4}!\right)^2}{\pi^{3}{2}}= \frac{2}{\pi}\int_0^1\frac{dx}{\sqrt{1 - x^4}}</math>

dimana agm berarti [[purata aritmetik-geometrik]]
|1799<ref>{{Cite book|last=Nielsen, Mikkel Slot.|date=July 2016|title=Undergraduate convexity : problems and solutions|isbn=9789813146211|pages=162|oclc=951172848}}</ref>
|[[Transcendental number|<math>\mathbb{T}</math>]]
|}

== Abad ke-19 ==
{| class="wikitable sortable"
!Nama
!Simbol
!Ekspansi desimal
!Rumus
!Tahun
!Himpunan
|-
|[[Tetapan Ramanujan–Soldner]]<ref>{{cite book|author=Johann Georg Soldner|year=1809|url=https://archive.org/details/bub_gb_g4Q_AAAAcAAJ|title=Théorie et tables d'une nouvelle fonction transcendante|publisher=J. Lindauer, München|page=[https://archive.org/details/bub_gb_g4Q_AAAAcAAJ/page/n39 42]|language=fr}}</ref><ref>{{cite book|author=Lorenzo Mascheroni|year=1792|url=https://archive.org/details/bub_gb_XkgDAAAAQAAJ|title=Adnotationes ad calculum integralem Euleri|publisher=Petrus Galeatius, Ticini|page=[https://archive.org/details/bub_gb_XkgDAAAAQAAJ/page/n34 17]|language=la}}</ref>
|<math display="block">{\mu}</math>
|1.45136 92348 83381 05028 <ref group="Mw">{{MathWorld|SoldnersConstant|Soldner's Constant}}</ref><ref group="OEIS">{{OEIS2C|A070769}}</ref>
|<math display="block"> \mathrm{li}(x) = \int\limits_0^x  \frac{dt}{\ln t} = 0   </math>Akar dari fungsi [[integral logaritmik]].
|1812<ref group="Mw">{{MathWorld|SoldnersConstant|Soldner's Constant}}</ref>
|
|-
|[[Tetapan Hermite]] <ref>{{cite book|author=Steven Finch|year=2014|url=http://www.people.fas.harvard.edu/~sfinch/csolve/erradd.pdf|title=Errata and Addenda to Mathematical Constants|publisher=Harvard.edu|access-date=2013-12-17|archive-url=https://web.archive.org/web/20160316175639/http://www.people.fas.harvard.edu/~sfinch/csolve/erradd.pdf|archive-date=2016-03-16|url-status=dead}}</ref>
|<math display="block"> \gamma_{_{2}} </math>
|1.15470 05383 79251 52901 <ref group="Mw">{{MathWorld|HermiteConstants|Hermite Constants}}</ref>
|<math display="block"> \frac{2}{\sqrt{3}} = \frac{1}{\cos \, (\frac{\pi}{6})} </math>
|1822 hingga  1901
|'''''[[Algebraic number|<math>\mathbb{A}</math>]]'''''
|-
|[[Bilangan Liouville]] <ref>{{cite book|author=Calvin C. Clawson|year=2003|url=https://books.google.com/books?id=E3Eu3sV_anUC&q=Liouville+number+0.11000100000000000000000100&pg=PA187|title=Mathematical Traveler: Exploring the Grand History of Numbers|publisher=Perseus|isbn=978-0-7382-0835-0|page=187}}{{Pranala mati|date=April 2023 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
|<math display="block">\text{£}_\text{Li}</math>
|<small> 0.11000 10000 00000 00000 0001 </small><ref group="Mw">{{MathWorld|LiouvillesConstant|Liouville's Constant}}</ref><ref group="OEIS">{{OEIS2C|A012245}}</ref>
|<math display="block"> \sum_{n=1}^\infty \frac{1}{10^{n!}} = \frac {1}{10^{1!}} + \frac{1}{10^{2!}} + \frac{1}{10^{3!}} + \frac{1}{10^{4!}}  + \cdots</math>
|Sebelum tahun 1844
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Bilangan Heegner#Hampir bilangan bulat dan tetapan Ramanujan|Hermite–Ramanujan constant]]<ref>{{cite book|author=L. J. Lloyd James Peter Kilford|year=2008|url=https://books.google.com/books?id=txPhITLO1YoC&q=262537412640768743.99999999999925&pg=PA107|title=Modular Forms: A Classical and Computational Introduction|publisher=Imperial College Press|isbn=978-1-84816-213-6|page=107}}</ref>
|<math display="block">{R}</math>
|262 53741 26407 68743 <br /> .99999 99999 99250 073 <ref group="Mw">{{MathWorld|RamanujanConstant|Ramanujan Constant}}</ref><ref group="OEIS">{{OEIS2C|A060295}}</ref>
|<math display="block"> e^{\pi\sqrt{163}}</math>
|1859
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Tetapan Catalan]]<ref>{{cite book|author=Henri Cohen|year=2000|url=https://books.google.com/books?id=5Lp-tGZR25sC&q=0.91596559417721901505460351493238411&pg=PA127|title=Number Theory: Volume II: Analytic and Modern Tools|publisher=Springer|isbn=978-0-387-49893-5|page=127}}</ref><ref>{{cite book|author1=H. M. Srivastava|author2=Choi Junesang|year=2001|url=https://books.google.com/books?id=NBcSzUlaWWAC&q=0.915965594177219015&pg=PA29|title=Series Associated With the Zeta and Related Functions|publisher=Kluwer Academic Publishers|isbn=978-0-7923-7054-3|page=30}}</ref><ref>{{cite book|author=E. Catalan|year=1864|url=https://books.google.com/books?id=LXZFAAAAcAAJ&pg=PA618|title=Mémoire sur la transformation des séries, et sur quelques intégrales définies, Comptes rendus hebdomadaires des séances de l'Académie des sciences 59|publisher=Kluwer Academic éditeurs|page=618}}</ref>
|<math display="block">{C}</math>
|0.91596 55941 77219 01505 <ref group="Mw">{{MathWorld|CatalansConstant|Catalan's Constant}}</ref><ref group="OEIS">{{OEIS2C|A006752}}</ref>
|<math display="block"> \int_0^1 \!\! \int_0^1 \!\! \frac{1}{1{+}x^2 y^2}\, \mathrm{d}x \, \mathrm{d}y
= \! \sum_{n = 0}^\infty \! \frac{(-1)^n}{(2n{+}1)^2} \!
= \! \frac{1}{1^2}{-}\frac{1}{3^2}{+}{\cdots} </math>
|1864
|[[Transcendental number|<math>\mathbb{T}</math>]]?
|-
|[[Bilangan Dottie]] <ref>{{cite book|author=James Stewart|year=2010|url=https://books.google.com/books?id=eztUxtCfNXoC&q=Single%20Variable%20Calculus%3A%20Concepts%20and%20Contexts%20%20Escrito%20por%20James%20Stewart&pg=PA314|title=Single Variable Calculus: Concepts and Contexts|publisher=Brooks/Cole|isbn=978-0-495-55972-6|page=314}}</ref>
|<math display="block">d</math>
|0.73908 51332 15160 64165 <ref name=":1" group="Mw">{{MathWorld|DottieNumber|Dottie Number}}</ref><ref group="OEIS">{{OEIS2C|A003957}}</ref>
|<math display="block"> \lim_{x\to \infty} \cos^{[x]}(c) = \lim_{x\to \infty} \underbrace{\cos(\cos(\cos(\cdots(\cos(c)))))}_x</math>
|1865<ref name=":1" group="Mw" />
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Tetapan Meissel–Mertens]] <ref>{{cite book|author=Julian Havil|year=2003|url=https://books.google.com/books?id=7-sDtIy8MNIC&q=Khinchin%27s+constant&pg=PA161|title=Gamma: Exploring Euler's Constant|publisher=Princeton University Press|isbn=9780691141336|page=64}}</ref>
|<math display="block">{M}</math>
|0.26149 72128 47642 78375 <ref group="Mw">{{MathWorld|MertensConstant|Mertens Constant}}</ref><ref group="OEIS">{{OEIS2C|A077761}}</ref>
|<math display="block">\lim_{n \rightarrow \infty } \!\! \left( 
\sum_{p \leq n} \frac{1}{p} \! - \ln(\ln(n))\! \right) \!\! =
\underset{\!\!\!\! \gamma: \, \text{tetapan Euler} ,\,\, 
p: \, \text{prima}}{\! \gamma \! + \!\! \sum_{p} \!\left( \! 
\ln \! \left( \! 1 \! - \! \frac{1}{p} \! \right)
 \!\! + \! \frac{1}{p} \! \right)}</math>
|1866 dan 1873
|[[Transcendental number|<math>\mathbb{T}</math>]]?
|-
|Tetapan [[Weierstrass]] <ref>{{cite book|author=Eric W. Weisstein|year=2003|url=https://books.google.com/books?id=aFDWuZZslUUC&q=%22Weierstrass+Constant%22&pg=PA3184|title=CRC Concise Encyclopedia of Mathematics, Second Edition|publisher=CRC Press|isbn=978-1-58488-347-0|page=151}}</ref>
|<math display="block">\sigma\left(\frac{1}{2}\right)</math>
|0.47494 93799 87920 65033 <ref group="Mw">{{MathWorld|WeierstrassConstant|Weierstrass Constant}}</ref><ref group="OEIS">{{OEIS2C|A094692}}</ref>
|<math display="block"> \frac{e^{\frac{\pi}{8}}\sqrt{\pi}}{4 \cdot 2^{3/4} {(\frac {1}{4}!)^2}}</math>
|1872 ?
|
|-
|[[Tetapan Hafner–Sarnak–McCurley]] (2) <ref>{{cite book|author1=Holger Hermanns|author2=Roberto Segala|year=2000|url=https://books.google.com/books?id=007-3SM9QmYC&q=0.607927101854026628663276779&pg=PA270|title=Process Algebra and Probabilistic Methods.|publisher=Springer-Verlag|isbn=978-3-540-67695-9|page=270}}</ref>
|<math display="block">\frac{1}{\zeta(2)}</math>
|0.60792 71018 54026 62866 <ref name=":3" group="Mw">{{MathWorld|RelativelyPrime|Relatively Prime}}</ref><ref group="OEIS">{{OEIS2C|A059956}}</ref>
|<math> \frac{6}{\pi^2} = \prod_{n = 0}^\infty \underset{p_n: \text{ prime}}{\! \left(\! 1- \frac{1}{{p_n}^2} \! \right)} \! = \! \textstyle \left(1 \! - \! \frac{1}{2^2}\right) \! \left(1 \! - \! \frac{1}{3^2}\right) \! \left(1 \! - \! \frac{1}{5^2}\right)\cdots</math>
|1883<ref name=":3" group="Mw" />
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Tetapan Cahen]] <ref>{{cite book|author=Yann Bugeaud|year=2004|url=https://books.google.com/books?id=iAg8FL5jKSgC&q=%22cahen+constant%22&pg=PA72|title=Series representations for some mathematical constants|isbn=978-0-521-82329-6|page=72}}</ref>
|<math display="block">\xi _{2}</math>
|0.64341 05462 88338 02618 <ref group="Mw">{{MathWorld|CahensConstant|Cahen's Constant}}</ref><ref group="OEIS">{{OEIS2C|A080130}}</ref>
|<math display="block"> \sum_{k=1}^{\infty} \frac{(-1)^{k}}{s_k-1} = \frac{1}{1} - \frac{1}{2} + \frac{1}{6} - \frac{1}{42} + \frac{1}{1806} {\,\pm \cdots}  </math> 
<small>Dimana</small> <math>s_k</math><small> adalah suku ke-</small><math>k</math><small> ''dari'' [[barisan Sylvester]] 2, 3, 7, 43, 1807, ...</small>Didefinsikan sebagai:  <math display="block">\, \, S_0= \, 2 , \,\, S_k= \, 1+\prod \limits_{n=0}^{k-1} S_n\text{ untuk}\;k>0 </math>
|1891
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Tetapan parabolik semesta]] <ref name=":14">{{cite book|author=Steven Finch|year=2014|url=http://www.people.fas.harvard.edu/~sfinch/csolve/erradd.pdf|title=Errata and Addenda to Mathematical Constants|publisher=Harvard.edu|page=59|access-date=2013-12-17|archive-url=https://web.archive.org/web/20160316175639/http://www.people.fas.harvard.edu/~sfinch/csolve/erradd.pdf|archive-date=2016-03-16|url-status=dead}}</ref>
|<math display="block"> {P}_{\,2} </math>
|2.29558 71493 92638 07403 <ref group="Mw">{{MathWorld|UniversalParabolicConstant|Universal Parabolic Constant}}</ref><ref group="OEIS">{{OEIS2C|A103710}}</ref>
|<math display="block">\ln(1 + \sqrt2) + \sqrt2 \; = \; \operatorname{arcsinh}(1)+\sqrt{2}</math>
|Sebelum 1891<ref>{{Cite book|last=Osborne|first=George Abbott|year=1891|url=https://archive.org/details/anelementarytre00osbogoog|title=An Elementary Treatise on the Differential and Integral Calculus|publisher=Leach, Shewell, and Sanborn|pages=[https://archive.org/details/anelementarytre00osbogoog/page/n265 250]}}</ref>
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Tetapan Apéry]] <ref>{{cite book|author1=Annie Cuyt|author2=Vigdis Brevik Petersen|author3=Brigitte Verdonk|author4=Haakon Waadelantl|author5=William B. Jones.|year=2008|url=https://books.google.com/books?id=DQtpJaEs4NIC&q=1.202056903159594285399738&pg=PA188|title=Handbook of Continued Fractions for Special Functions|publisher=Springer|isbn=978-1-4020-6948-2|page=188}}</ref>
|<math display="block">\zeta(3)</math>
|1.20205 69031 59594 28539 <ref group="Mw">{{MathWorld|AperysConstant|Apéry's Constant}}</ref><ref group="OEIS">{{OEIS2C|A002117}}</ref>
|<math display="block">\begin{align}
\sum_{n=1}^\infty\frac{1}{n^3} &= \frac{1}{1^3}+\frac{1}{2^3} + \frac{1}{3^3} + \frac{1}{4^3} + \frac{1}{5^3} + \cdots \\
&= \frac{1}{2} \sum_{i=1}^\infty \sum_{j=1}^\infty \frac{1}{ij(i{+}j)} \\
&= \!\!\int \limits_0^1 \!\!\int \limits_0^1 \!\!\int \limits_0^1 \frac{\mathrm{d}x \, \mathrm{d}y \, \mathrm{d}z}{1 - xyz}
\end{align} </math>
|1895<ref>See {{harvnb|Jensen|1895}}.</ref>
|'''''[[Irrational number|<math>\mathbb{R} \setminus \mathbb{Q}</math>]]'''''
'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''?
|-
|[[Tetapan Gelfond]] <ref>{{cite book|author=David Wells|year=1997|url=https://books.google.com/books?id=7L7xcjBPemEC&q=23.14069&pg=RA2-PA4|title=The Penguin Dictionary of Curious and Interesting Numbers|publisher=Penguin Books Ltd.|isbn=9780141929408|page=4}}</ref>
|<math display="block">{e}^{\pi}</math>
|23.14069 26327 79269 0057 <ref group="Mw">{{MathWorld|GelfondsConstant|Gelfonds Constant}}</ref><ref group="OEIS">{{OEIS2C|A039661}}</ref>
|<math display="block"> (-1)^{-i} = i^{-2i} = \sum_{n=0}^\infty \frac{\pi^{n}}{n!} = 1 + \frac{\pi^{1}}{1} + \frac{\pi^{2}}{2} + \frac{\pi^{3}}{6} + \cdots</math>
|1900<ref name="tijdeman">{{cite book|last=Tijdeman|first=Robert|year=1976|title=Mathematical Developments Arising from Hilbert Problems|publisher=[[American Mathematical Society]]|isbn=0-8218-1428-1|editor=Felix E. Browder|editor-link=Felix Browder|series=[[Proceedings of Symposia in Pure Mathematics]]|volume=XXVIII.1|pages=241–268|chapter=On the Gel'fond–Baker method and its applications|zbl=0341.10026|author-link=Robert Tijdeman}}</ref>
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|}

== 1900–1949 ==
{| class="wikitable sortable"
!Nama
!Simbol
!Ekspansi desimal
!Rumus
!Tahun
!Himpunan
|-
|[[Tetapan Favard]] <ref>{{cite book|author1=Helmut Brass|author2=Knut Petras|year=2010|url=https://books.google.com/books?id=nbjOnJlJfFYC&q=Favard+Constant&pg=PA274|title=Quadrature Theory: The Theory of Numerical Integration on a Compact Interval|publisher=AMS|isbn=978-0-8218-5361-0|page=274}}</ref>
|<math display="block">\frac34\zeta(2)</math>
|1.23370 05501 36169 82735 <ref group="Mw">{{MathWorld|FavardConstants|Favard Constants}}</ref><ref group="OEIS">{{OEIS2C|A111003}}</ref>
|<math display="block"> \frac{\pi^2}{8} = \sum_{n = 0}^\infty \frac{1}{(2n-1)^2} = \frac{1}{1^2}+\frac{1}{3^2}+\frac{1}{5^2}+\frac{1}{7^2}+\cdots </math>
|1902 hingga 1965
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Sudut emas]] <ref>{{cite book|url=http://fibonacci.ucoz.com/index/ang/0-9|title=Ángulo áureo}}</ref>
|<math display="block">{b}</math>
|2.39996 32297 28653 32223 <ref group="Mw">{{MathWorld|GoldenAngle|Golden Angle}}</ref><ref group="OEIS">{{OEIS2C|A131988}}</ref>
|<math display="block">(4-2\,\Phi)\,\pi = (3-\sqrt{5})\,\pi = 137.5077640500378546\dots^\circ</math>
|1907
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Tetapan Sierpiński]] <ref>{{cite book|author=Eric W. Weisstein|year=2002|url=https://books.google.com/books?id=aFDWuZZslUUC&q=1.584962500&pg=PA2685|title=CRC Concise Encyclopedia of Mathematics, Second Edition|publisher=CRC Press|isbn=9781420035223|page=1356}}</ref>
|<math display="block"> {K} </math>
|2.58498 17595 79253 21706 <ref group="Mw">{{MathWorld|SierpinskiConstant|Sierpinski Constant}}</ref><ref group="OEIS">{{OEIS2C|A062089}}</ref>
|<math display="block">\begin{align}
\pi\left(2\gamma+\ln\frac{4\pi^3}{\Gamma(\tfrac{1}{4})^4}\right) &= \pi (2 \gamma + 4 \ln\Gamma(\tfrac{3}{4}) - \ln\pi) \\
&= \pi \left(2 \ln 2+3 \ln \pi + 2 \gamma - 4 \ln \Gamma (\tfrac{1}{4})\right)
\end{align} </math>
|1907
|
|-
|Tetapan [[Niels Nielsen (mathematician)|Nielsen]]–[[Ramanujan]] <ref>{{cite book|author=Mauro Fiorentini|url=http://bitman.name/math/article/872|title=Nielsen – Ramanujan (costanti di)}}</ref>
|<math display="block">\frac{{\zeta}(2)}{2}</math>
|0.82246 70334 24113 21823 <ref group="Mw">{{MathWorld|Nielsen-RamanujanConstants|Nielsen-Ramanujan Constants}}</ref><ref group="OEIS">{{OEIS2C|A072691}}</ref>
|<math display="block"> \frac{\pi^2}{12} = \sum_{n=1}^\infty\frac{(-1)^{n+1}}{n^2} = \frac{1}{1^2} {-} \frac{1}{2^2} {+} \frac{1}{3^2} {-} \frac{1}{4^2} {+} \frac{1}{5^2} {-} \cdots </math>
|1909
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Himpunan Mandelbrot|Luas dari fraktal Mandelbrot]] <ref>{{cite book|author=Robert P. Munafo|year=2012|url=http://www.mrob.com/pub/muency/pixelcounting.html|title=Pixel Counting}}</ref>
|<math display="block">\gamma </math>
|{{gaps|1.50659|18849}} ± {{gaps|0.00000|00028}} <ref group="Mw">{{MathWorld|MandelbrotSet|Mandelbrot Set}}</ref><ref group="OEIS">{{OEIS2C|A098403}}</ref>
|
|1912
|
|-
|[[Tetapan Gieseking]] ([[:de:Gieseking-Konstante|de]]) <ref>{{cite book|author=Steven Finch|url=http://www.people.fas.harvard.edu/~sfinch/csolve/hyp.pdf|title=Volumes of Hyperbolic 3-Manifolds|publisher=Harvard University|archive-url=https://web.archive.org/web/20150919160427/http://www.people.fas.harvard.edu/~sfinch/csolve/hyp.pdf|archive-date=2015-09-19|url-status=dead}}</ref>
|<math display="block">{\pi \ln \beta} </math>
|1.01494 16064 09653 62502 <ref group="Mw">{{MathWorld|GiesekingsConstant|Gieseking's Constant}}</ref><ref group="OEIS">{{OEIS2C|A143298}}</ref>
|<math display="block">\begin{align}
\frac{3\sqrt{3}}{4} \left(1- \sum_{n=0}^\infty \frac{1}{(3n+2)^2} + \sum_{n=1}^\infty\frac{1}{(3n+1)^2} \right) &= \frac{3\sqrt{3}}{4} \left( 1 - \frac{1}{2^2} + \frac{1}{4^2}-\frac{1}{5^2}+\frac{1}{7^2}-\frac{1}{8^2}+\frac{1}{10^2} \pm \cdots \right)
\end{align} </math>
|1912
|
|-
|Tetapan Bernstein <ref>{{cite book|author=Lloyd N. Trefethen|year=2013|url=https://books.google.com/books?id=En41UGQ6YXsC&q=0.28016949902386913303643649&pg=PA211|title=Approximation Theory and Approximation Practice|publisher=SIAM|isbn=978-1-611972-39-9|page=211}}</ref>
|<math display="block">{\beta}</math>
|0.28016 94990 23869 13303 <ref group="Mw">{{MathWorld|BernsteinsConstant|Bernstein's Constant}}</ref><ref group="OEIS">{{OEIS2C|A073001}}</ref>
|<math display="block"> \approx \frac {1}{2\sqrt {\pi}}</math>
|1913
|
|-
|[[Bilangan prima kembar#Konjektur Hardy–Littlewood pertama|Tetapan bilangan prima kembar]] <ref>{{cite arXiv|eprint=1109.6557|class=math.GM|author=R. M. ABRAROV AND S. M. ABRAROV|title=PROPERTIES AND APPLICATIONS OF THE PRIME DETECTING FUNCTION|year=2011}}</ref>
|<math display="block">{C}_{2}</math>
|0.66016 18158 46869 57392 <ref group="Mw">{{MathWorld|TwinPrimesConstant|Twin Primes Constant}}</ref><ref group="OEIS">{{OEIS2C|A005597}}</ref>
|<math display="block">\prod_{p=3}^\infty \frac{p(p-2)}{(p-1)^2} </math>
|1922
|
|-
|[[Bilangan plastik]] <ref>{{cite book|author=Ian Stewart|year=1996|url=https://books.google.com/books?id=oW6Xeo8EmDgC&q=%22Plastic+number%22&pg=PT120|title=Professor Stewart's Cabinet of Mathematical Curiosities|publisher=Birkhäuser Verlag|isbn=978-1-84765-128-0}}</ref>
|<math display="block">{\rho}</math>
|1.32471 79572 44746 02596 <ref group="Mw">{{MathWorld|PlasticConstant|Plastic Constant}}</ref><ref group="OEIS">{{OEIS2C|A060006}}</ref>
|<math display="block">\sqrt[3]{1 + \! \sqrt[3]{1 + \! \sqrt[3]{1 + \cdots}}} = \textstyle \sqrt[3]{\frac{1}{2}+\frac{\sqrt{69}}{18}}+\sqrt[3]{\frac{1}{2}-\frac{\sqrt{69}}{18}}</math>
|1929
|'''''[[Algebraic number|<math>\mathbb{A}</math>]]'''''
|-
|[[Teorema Bloch (peubah kompleks)#Tetapan Bloch dan Landau|Tetapan Bloch–Landau]] <ref>{{cite book|author=Eric W. Weisstein|year=2003|url=https://books.google.com/books?id=aFDWuZZslUUC&q=Bloch-Landau+constant&pg=PA1688|title=CRC Concise Encyclopedia of Mathematics, Second Edition|publisher=CRC Press|isbn=978-1-58488-347-0|page=1688}}</ref>
|<math display="block">{L}</math>
|0.54325 89653 42976 70695 <ref group="Mw">{{MathWorld|LandauConstant|Landau Constant}}</ref><ref group="OEIS">{{OEIS2C|A081760}}</ref>
|<math display="block"> = \frac {\Gamma(\tfrac13)\;\Gamma(\tfrac{5}{6})} {\Gamma(\tfrac{1}{6})} = \frac {(-\tfrac23)!\;(-1+\tfrac56)!} {(-1+\tfrac16)!}</math>
|1929
|
|-
|[[Tetapan Golomb–Dickman]] <ref>{{cite book|author=Eric W. Weisstein|year=2002|url=https://books.google.com/books?id=aFDWuZZslUUC&q=Golomb%E2%80%93Dickman+constant&pg=PA1211|title=CRC Concise Encyclopedia of Mathematics|publisher=Crc Press|isbn=9781420035223|page=1212}}</ref>
|<math display="block">{\lambda}</math>
|0.62432 99885 43550 87099 <ref group="Mw">{{MathWorld|Golomb-DickmanConstant|Golomb-Dickman Constant}}</ref><ref group="OEIS">{{OEIS2C|A084945}}</ref>
|<math display="block">\int \limits_0^\infty \underset{\text{Para } x>2}{\frac{f(x)}{x^2} \, \mathrm{d}x} = \int \limits_0^1 e^{\operatorname{Li}(n)} \mathrm{d}n</math>dimana <math>\operatorname{Li} </math> adalah [[integral logaritmik]].
|1930 dan 1964
|
|-
|[[Tetapan Feller–Tornier]] <ref>{{cite book|author=ECKFORD COHEN|year=1962|url=http://www.ams.org/journals/tran/1964-112-02/S0002-9947-1964-0166181-5/S0002-9947-1964-0166181-5.pdf|title=SOME ASYMPTOTIC FORMULAS IN THE THEORY OF NUMBERS|publisher=University of Tennessee|page=220}}</ref>
|<math display="block">{\mathcal{C}_{_{FT}}}</math>
|0.66131 70494 69622 33528 <ref group="Mw">{{MathWorld|Feller-TornierConstant|Feller-Tornier Constant}}</ref><ref group="OEIS">{{OEIS2C|A065493}}</ref>
|<math display="block">\underset{p_n: \, {prime}}{\frac{1}{2}\prod_{n = 1}^\infty \left(1-\frac{2}{p_n^2}\right){+}\frac{1}{2}} =\frac{3}{\pi^2}\prod_{n = 1}^\infty \left(1-\frac{1}{p_n^2-1}\right){+}\frac{1}{2}</math>
|1932
|[[Transcendental number|<math>\mathbb{T}</math>]]?
|-
|[[Tetapan Champernowne]] basis 10<ref>{{cite book|author1=Michael J. Dinneen|author2=Bakhadyr Khoussainov|author3=Prof. Andre Nies|year=2012|url=https://books.google.com/books?id=wRWyMbmJTMYC&q=%22Champernowne+number%22&pg=PA109|title=Computation, Physics and Beyond|publisher=Springer|isbn=978-3-642-27653-8|page=110}}</ref>
|<math display="block">C_{10}</math>
|0.12345 67891 01112 13141 <ref group="Mw">{{MathWorld|ChampernowneConstant|Champernowne Constant}}</ref><ref group="OEIS">{{OEIS2C|A033307}}</ref>
|<math display="block">\sum_{n=1}^\infty \; \sum_{k=10^{n-1}}^{10^n-1}\frac{k}{10^{kn-9\sum_{j=0}^{n-1}10^j(n-j-1)}}</math>
|1933
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Tetapan Gelfond–Schneider]] <ref>{{cite book|author=David Cohen|year=2006|url=https://books.google.com/books?id=RSU8AAAAQBAJ&q=2.6651&pg=PA328|title=Precalculus: With Unit Circle Trigonometry|publisher=Thomson Learning Inc.|isbn=978-0-534-40230-3|page=328}}</ref>
|<math display="block"> G_{\,GS} </math>
|2.66514 41426 90225 18865 <ref group="Mw">{{MathWorld|Gelfond-SchneiderConstant|Gelfond-Schneider Constant}}</ref><ref group="OEIS">{{OEIS2C|A007507}}</ref>
|<math display="block">2^{\sqrt{2}}</math>
|1934
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Tetapan Khinchin]] <ref>{{cite book|author=Julian Havil|year=2003|url=https://books.google.com/books?id=7-sDtIy8MNIC&q=Khinchin%27s+constant&pg=PA161|title=Gamma: Exploring Euler's Constant|publisher=Princeton University Press|isbn=9780691141336|page=161}}</ref>
|<math display="block"> K_{\,0} </math>
|{{nobr|2.68545 20010 65306 44530}}&nbsp;<ref group="Mw">{{MathWorld|KhinchinsConstant|Khinchin's Constant}}</ref><ref group="OEIS">{{OEIS2C|A002210}}</ref>
|<math display="block"> \prod_{n=1}^\infty \left[{1+{1\over n(n+2)}}\right]^\frac{\ln n}{\ln 2}</math>
|1934
|[[Transcendental number|<math>\mathbb{T}</math>]]?
|-
|[[Tetapan Khinchin–Lévy]]<ref>{{cite book|author=Aleksandr I͡Akovlevich Khinchin|year=1997|url=https://books.google.com/books?id=R7Fp8vytgeAC&pg=PA66|title=Continued Fractions|publisher=Courier Dover Publications|isbn=978-0-486-69630-0|page=66}}</ref>
|<math display="block">{\beta}</math>
|1.18656 91104 15625 45282 <ref group="Mw">{{MathWorld|LevyConstant|Levy Constant}}</ref><ref group="OEIS">{{OEIS2C|A100199}}</ref>
|<math display="block">\frac {\pi^2}{12\,\ln 2}</math>
|1935
|
|-
|[[Tetapan Khinchin–Lévy]] <ref>{{cite journal|author=Marek Wolf|year=2018|title=Two arguments that the nontrivial zeros of the Riemann zeta function are irrational|journal=Computational Methods in Science and Technology|volume=24|issue=4|pages=215–220|arxiv=1002.4171|doi=10.12921/cmst.2018.0000049|s2cid=115174293}}</ref>
|<math display="block">e^{\beta}</math>
|3.27582 29187 21811 15978 <ref group="Mw">{{MathWorld|LevyConstant|Levy Constant}}</ref><ref group="OEIS">{{OEIS2C|A086702}}</ref>
|<math display="block"> e^\frac{\pi^2}{12\ln 2}</math>
|1936
|
|-
|[[Tetapan Mills]] <ref>{{cite book|author=Laith Saadi|year=2004|url=https://books.google.com/books?id=Mll0WZAjdyEC&q=%22Mills%27+constant%22&pg=PT170|title=Stealth Ciphers|publisher=Trafford Publishing|isbn=978-1-4120-2409-9|page=160}}{{Pranala mati|date=April 2023 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
|<math display="block">{\theta}</math>
|1.30637 78838 63080 69046 <ref group="Mw">{{MathWorld|MillsConstant|Mills Constant}}</ref><ref group="OEIS">{{OEIS2C|A051021}}</ref>
|<math> \lfloor \theta^{3^{n}} \rfloor</math> adalah prima.
|1947
|
|-
|[[Tetapan Gompertz|Tetapan Euler–Gompertz]] <ref name=":55">{{cite book|author1=Annie Cuyt|author2=Viadis Brevik Petersen|author3=Brigitte Verdonk|author4=William B. Jones|year=2008|url=https://books.google.com/books?id=DQtpJaEs4NIC&q=Gompertz+constant&pg=PA190|title=Handbook of continued fractions for special functions|publisher=Springer Science|isbn=978-1-4020-6948-2|page=190}}</ref>
|<math display="block">{G}</math>
|0.59634 73623 23194 07434 <ref group="Mw">{{MathWorld|GompertzConstant|Gompertz Constant}}</ref><ref group="OEIS" name=":1">{{OEIS2C|A073003}}</ref>
|<math display="block">\begin{align}
\int \limits_0^\infty \!\! \frac{e^{-n}}{1{+}n} \, \mathrm{d}n &= \!\! \int \limits_0^1 \!\! \frac{1}{1{-}\ln n} \, \mathrm{d}n \\
&= {\frac 1 {1+\frac 1{1+\frac 1{1+\frac 2{1+\frac 2{1+\frac 3{1+\frac{3}{\ddots}} }}}}}}
\end{align} </math>
|Sebelum tahun 1948<ref name=":1" group="OEIS" />
|
|}

== 1950–1999 ==

{| class="wikitable sortable"
!Nama
!Simbol
!Ekspansi desimal
!Rumus
!Tahun
!Himpunan
|-
|[[Tetapan Van der Pauw]]
|<math display="block"> {\alpha} </math>
|4.53236 01418 27193 80962<ref group="OEIS">{{OEIS2C|A163973}}</ref>
|<math display="block">\frac{\pi}{\ln(2)}=\frac{\sum\limits_{n=0}^\infty \frac{4(-1)^n}{2n+1}}{\sum\limits_{n=1}^\infty \frac{(-1)^{n+1}}{n}}=\frac{\frac{4}{1}-\frac{4}{3}+\frac{4}{5}-\frac{4}{7}+\frac{4}{9}-\cdots}{\frac{1}{1}-\frac{1}{2}+\frac{1}{3}-\frac{1}{4}+\frac{1}{5}-\cdots}</math>
|Sebelum tahun 1958<ref group="OEIS">{{OEIS2C|A163973}}</ref>
|
|-
|[[Sudut ajaib]] <ref name=":46">{{cite book|author=Andras Bezdek|year=2003|url=https://books.google.com/books?id=WoaxgpHu19gC&q=0.955316&pg=PA150|title=Discrete Geometry|publisher=Marcel Dekkcr, Inc.|isbn=978-0-8247-0968-6|page=150}}</ref>
|<math display="block"> {\theta_m} </math>
|0.95531 66181 245092 78163<ref group="OEIS">{{OEIS2C|A195696}}</ref>
|<math display="block"> \arctan \left(\sqrt{2}\right) = \arccos \left(\sqrt{\tfrac13}\right) \approx   \textstyle {54.7356} ^{ \circ } </math>
|Sebelum tahun 1959<ref name=":46" /><ref>{{Cite journal|last=Lowe|first=I. J.|date=1959-04-01|title=Free Induction Decays of Rotating Solids|url=https://link.aps.org/doi/10.1103/PhysRevLett.2.285|journal=Physical Review Letters|language=en|volume=2|issue=7|pages=285–287|doi=10.1103/PhysRevLett.2.285|issn=0031-9007}}</ref>
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Tetapan Lochs]] <ref>{{cite book|author=Steven Finch|year=2007|url=http://www.people.fas.harvard.edu/~sfinch/csolve/kz.pdf|title=Continued Fraction Transformation|publisher=Harvard University|page=7|access-date=2015-02-28|archive-url=https://web.archive.org/web/20160419114446/http://www.people.fas.harvard.edu/~sfinch/csolve/kz.pdf|archive-date=2016-04-19|url-status=dead}}</ref>
|<math display="block">{\text{£}_{\text{Lo}}}</math>
|0.97027 01143 92033 92574 <ref group="Mw">{{MathWorld|LochsConstant|Lochs' Constant}}</ref><ref group="OEIS">{{OEIS2C|A086819}}</ref>
|<math display="block"> \frac {6 \ln 2 \ln 10}{ \pi^2} </math>
|1964
|
|-
|[[Tetapan es persegi Lieb]] <ref>{{cite book|author=Robin Whitty|url=http://www.theoremoftheday.org/MathPhysics/Lieb/TotDLieb.pdf|title=Lieb's Square Ice Theorem}}</ref>
|<math display="block">{W}_{2D}</math>
|1.53960 07178 39002 03869 <ref group="Mw">{{MathWorld|LiebsSquareIceConstant|Liebs Square Ice Constant}}</ref><ref group="OEIS">{{OEIS2C|A118273}}</ref>
|<math display="block">\lim_{n\to\infty}(f(n))^{n^{-2}}=\left(\frac{4}{3}\right)^\frac{3}{2}=\frac{8}{3\sqrt3}</math>
|1967
|'''''[[Algebraic number|<math>\mathbb{A}</math>]]'''''
|-
|[[Tetapan Niven]] <ref>{{cite book|author=Ivan Niven|url=http://www.ams.org/journals/proc/1969-022-02/S0002-9939-1969-0241373-5/S0002-9939-1969-0241373-5.pdf|title=Averages of exponents in factoring integers}}</ref>
|<math display="block">{C}</math>
|1.70521 11401 05367 76428 <ref group="Mw">{{MathWorld|NivensConstant|Niven's Constant}}</ref><ref group="OEIS">{{OEIS2C|A033150}}</ref>
|<math display="block">1+\sum_{n = 2}^\infty \left(1-\frac{1}{\zeta(n)} \right)</math>
|1969
|
|-
|[[Teorema Baker|Tetapan Baker]] <ref name=":2">{{cite book|author=Jean-Pierre Serre|year=1969–1970|url=http://archive.numdam.org/ARCHIVE/SB/SB_1969-1970__12_/SB_1969-1970__12__73_0/SB_1969-1970__12__73_0.pdf|title=Travaux de Baker|publisher=NUMDAM, Séminaire N. Bourbaki.|page=74}}</ref>
|<math display="block">\beta_3</math>
|0.83564 88482 64721 05333<ref group="OEIS">{{OEIS2C|A113476}}</ref>
|<math display="block">\int^1_0 \frac{{\mathrm{d} t}}{1 + t^3}=\sum_{n = 0}^\infty \frac{(-1)^n}{3n+1}= \frac{1}{3}\left(\ln 2+\frac{\pi}{\sqrt{3}}\right)</math>
|Sebelum tahun 1969<ref name=":2" />
|
|-
|[[Tetapan Porter]]<ref>{{cite book|author=Michel A. Théra|year=2002|url=https://books.google.com/books?id=QTcCSegK6jQC&q=%22Porter%E2%80%99s+constant%22&pg=PA80|title=Constructive, Experimental, and Nonlinear Analysis|publisher=CMS-AMS|isbn=978-0-8218-2167-1|page=77}}</ref>
|<math display="block">{C}</math>
|1.46707 80794 33975 47289 <ref group="Mw">{{MathWorld|PortersConstant|Porter's Constant}}</ref><ref group="OEIS">{{OEIS2C|A086237}}</ref>
|<math display="block"> \frac{6\ln 2}{\pi ^2} \left(3 \ln 2 + 4 \,\gamma -\frac{24}{\pi ^2} \,\zeta '(2)-2 \right)-\frac{1}{2}</math> 
<small>dimana</small> <math> \scriptstyle \gamma </math> <small>adalah tetapan Euler–Mascheroni dengan nilai 0.5772156649... dan</small> <math> \scriptstyle \zeta '(2) </math> <small>adalah turunan dari</small> <math>\scriptstyle \zeta(2) </math> <small>dengan nilai –0.9375482543...</small>
|1974
|
|-
|[[Tetapan Feigenbaum#Tetapan pertama|Tetapan Feigenbaum]] (δ) <ref>{{cite book|author=Kathleen T. Alligood|year=1996|url=https://books.google.com/books?id=i633SeDqq-oC&q=669201609&pg=PA500|title=Chaos: An Introduction to Dynamical Systems|publisher=Springer|isbn=978-0-387-94677-1}}</ref>
|<math display="block">{\delta}</math>
|4.66920 16091 02990 67185 {{refn|group=Mw|name=Feigenbaum Constant|{{MathWorld|FeigenbaumConstant|Feigenbaum Constant}}}}<ref group="OEIS">{{OEIS2C|A006890}}</ref>
|<math display="block"> \lim_{n \to \infty}\frac {x_{n+1}-x_n}{x_{n+2}-x_{n+1}}, \quad  x \in (3.8284;\, 3.8495)</math>
<small>dimana</small> <math> \scriptstyle x_{n+1}=\,ax_n(1-x_n)\quad \text{atau} \quad x_{n+1}=\,a\sin(x_n)</math>.
|1975
|
|-
|[[Tetapan Chaitin]] <ref>{{cite book|author=David Darling|year=2004|url=https://books.google.com/books?id=HrOxRdtYYaMC&q=%22Chaitin+constant%22&pg=PA63|title=The Universal Book of Mathematics: From Abracadabra to Zeno's Paradoxes|publisher=Wiley & Sons inc.|isbn=978-0-471-27047-8|page=63}}</ref>
|<math display="block">\Omega </math>
|Secara umum mereka merupakan [[bilangan yang tak dapat dihitung]].<br />Tapi salah satu bilangannya 0.00787 49969 97812 3844<br /><ref group="Mw">{{MathWorld|ChaitinsConstant|Chaitin's Constant}}</ref><ref group="OEIS">{{OEIS2C|A100264}}</ref>
|<math display="block">\sum_{p \in P} 2^{-|p|}</math>

* <math>p</math> adalah program terhenti;
* <math>\left|p\right|</math> adalah ukuran dalam bit program  Size in bits of program <math>p</math>; dan
* <math>P</math> adalah ranah semua program yang berhenti.
{{See also|Masalah penghentian}}
|1975
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Tetapan Fransén–Robinson]] <ref>{{cite book|author1=Dusko Letic|author2=Nenad Cakic|author3=Branko Davidovic|author4=Ivana Berkovic|url=http://www.advancesindifferenceequations.com/content/pdf/1687-1847-2012-22.pdf|title=Orthogonal and diagonal dimension fluxes of hyperspherical function|publisher=Springer}}</ref>
|<math display="block">{F}</math>
|2.80777 02420 28519 36522 <ref group="Mw">{{MathWorld|Fransen-RobinsonConstant|Fransen-Robinson Constant}}</ref><ref group="OEIS">{{OEIS2C|A058655}}</ref>
|<math display="block">\int_{0}^\infty \frac{1}{\Gamma(x)}\, \mathrm{d}x = e + \int_0^\infty \frac{e^{-x}}{\pi^2 + \ln^2 x}\, \mathrm{d}x</math>
|1978
|
|-
|[[Tetapan Robbins]] <ref>{{cite book|author=Steven R. Finch|year=2003|url=https://archive.org/details/mathematicalcons0000finc|title=Mathematical Constants|publisher=Cambridge University Press|isbn=978-3-540-67695-9|page=[https://archive.org/details/mathematicalcons0000finc/page/479 479]|quote=Schmutz.|url-access=registration}}</ref>
|<math display="block">\Delta(3)</math>
|0.66170 71822 67176 23515 <ref group="Mw">{{MathWorld|RobbinsConstant|Robbins Constant}}</ref><ref group="OEIS">{{OEIS2C|A073012}}</ref>
|<math display="block"> \frac{4 \! + \! 17\sqrt2 \! -6 \sqrt3 \! -7\pi}{105} \! + \! \frac{\ln(1 \! + \! \sqrt2)}{5} \! + \! \frac{2\ln(2 \! + \! \sqrt3)}{5} </math>
|1978
|
|-
|[[Tetapan Feigenbaum#Tetapan kedua|Tetapan Feigenbaum]] (α) <ref>{{cite book|author1=K. T. Chau|author2=Zheng Wang|year=201|url=https://books.google.com/books?id=DhCbYXzLFLsC&q=2.502907875095892822283902873218&pg=PA7|title=Chaos in Electric Drive Systems: Analysis, Control and Application|publisher=John Wiley & Son|isbn=978-0-470-82633-1|page=7}}</ref>
|<math display="block">\alpha</math>
|2.50290 78750 95892 82228 {{refn|group=Mw|name=Feigenbaum Constant}}<ref group="OEIS">{{OEIS2C|A006891}}</ref>
|<math display="block">\lim_{n \to \infty}\frac {d_n}{d_{n+1}}</math>
|1979
|[[Transcendental number|<math>\mathbb{T}</math>]]?
|-
|[[Himpunan Cantor#Keserupaan-diri|Dimensi fraktal dari himpunan Cantor]] <ref name=":58">{{cite book|author=Paul Manneville|year=2010|url=https://books.google.com/books?id=6-GivG81u6oC&q=0.63092975&pg=PA176|title=Instabilities, Chaos and Turbulence|publisher=Imperial College Press|isbn=978-1-84816-392-8|page=176}}</ref>
|<math display="block">d_f(k)</math>
|0.63092 97535 71457 43709 <ref group="Mw">{{MathWorld|CantorSet|Cantor Set}}</ref><ref group="OEIS" name=":3">{{OEIS2C|A102525}}</ref>
|<math display="block"> \lim_{\varepsilon \to 0} \frac {\log N(\varepsilon)}{\log \left(\frac{1}{\varepsilon}\right)} = \frac{\log 2}{\log 3} </math>
|Sebelum tahun 1979<ref name=":3" group="OEIS" />
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Tetapan perangkai]] <ref>{{cite book|author=Mireille Bousquet-Mélou|url=http://www.labri.fr/perso/bousquet/Exposes/fpsac-saw.pdf|title=Two-dimensional self-avoiding walks|publisher=CNRS, LaBRI, Bordeaux, France|author-link=Mireille Bousquet-Mélou}}</ref><ref name=":13">{{cite book|author1=Hugo Duminil-Copin|author2=Stanislav Smirnov|year=2011|url=http://www.unige.ch/~smirnov/slides/slides-saw.pdf|title=The connective constant of the honeycomb lattice √ (2 + √ 2)|publisher=Université de Geneve|name-list-style=amp}}</ref>
|<math display="block">{\mu}</math>
|1.84775 90650 22573 51225 <ref group="Mw">{{MathWorld|Self-AvoidingWalkConnectiveConstant|Self-Avoiding Walk Connective Constant}}</ref><ref group="OEIS">{{OEIS2C|A179260}}</ref>
|<math display="block">\sqrt{2 + \sqrt{2}} \; = \lim_{n \rightarrow \infty} c_n^{1/n} </math>
sebagai sebuah akar dari polinomial <math>x ^ 4-4 x ^ 2 + 2=0</math>.
|1982<ref name="Nienhuis1982">{{cite journal|author=B. Nienhuis|year=1982|title=Exact critical point and critical exponents of O(''n'') models in two dimensions|journal=Phys. Rev. Lett.|volume=49|issue=15|pages=1062–1065|bibcode=1982PhRvL..49.1062N|doi=10.1103/PhysRevLett.49.1062}}</ref>
|'''''[[Algebraic number|<math>\mathbb{A}</math>]]'''''
|-
|Tetapan [[konjektur Lehmer]] <ref>{{cite book|author=Pei-Chu Hu,Chung-Chun|year=2008|url=https://books.google.com/books?id=LYT5sBm_Ie0C&q=1.1762808&pg=PA246|title=Distribution Theory of Algebraic Numbers|publisher=Hong Kong University|isbn=978-3-11-020536-7|page=246}}</ref>
|<math display="block">{\sigma_{_{10}}}</math>
|1.17628 08182 59917 50654 <ref group="Mw">{{MathWorld|SalemConstants|Salem Constants}}</ref><ref group="OEIS">{{OEIS2C|A073011}}</ref>
|<math display="block">x^{10}+x^9-x^7-x^6-x^5-x^4-x^3+x+1 </math>
|1983?
|'''''[[Algebraic number|<math>\mathbb{A}</math>]]'''''
|-
|[[Radius sebentuk#Tetapan Fekete, Chebyshev dan Chebyshev termodifikasi|Tetapan Chebyshev]] <ref name=":59">{{cite book|author=Steven Finch|year=2014|url=http://www.people.fas.harvard.edu/~sfinch/csolve/capa.pdf|title=Electrical Capacitance|publisher=Harvard.edu|page=1|access-date=2015-10-12|archive-url=https://web.archive.org/web/20160419150944/http://www.people.fas.harvard.edu/~sfinch/csolve/capa.pdf|archive-date=2016-04-19|url-status=dead}}</ref>{{,}}<ref>{{cite book|author=Thomas Ransford|url=http://www.heldermann-verlag.de/cmf/cmf10/cmf10029.pdf|title=Computation of Logarithmic Capacity|publisher=Université Laval, Quebec (QC), Canada|page=557}}{{Dead link|date=March 2020|bot=InternetArchiveBot|fix-attempted=yes}}</ref>
|<math display="block">\lambda_\text{Ch}</math>
|0.59017 02995 08048 11302 <ref name=":6" group="Mw">{{MathWorld|ChebyshevConstants|Chebyshev Constants}}</ref><ref group="OEIS">{{OEIS2C|A249205}}</ref>
|<math display="block">\frac{\Gamma\left(\frac{1}{4}\right)^2}{4 \pi^{\frac{3}{2}}} = \frac{4 \left(\frac{1}{4} !\right)^2}{\pi^{\frac{3}{2}}}</math>
|Sebelum tahun 1987<ref name=":6" group="Mw" />
|
|-
|[[Tetapan Conway]] <ref>{{cite book|author=Facts On File, Incorporated|year=1997|url=https://books.google.com/books?id=gmCSpNhXMooC&q=Conway%20Constant&pg=PA45|title=Mathematics Frontiers|isbn=978-0-8160-5427-5|page=46}}</ref>
|<math display="block">{\lambda}</math>
|1.30357 72690 34296 39125 <ref group="Mw">{{MathWorld|ConwaysConstant|Conway's Constant}}</ref><ref group="OEIS">{{OEIS2C|A014715}}</ref>
|<math display="block"> \begin{smallmatrix}
x^{71}\quad\ -x^{69}-2x^{68}-x^{67}+2x^{66}+2x^{65}+x^{64}-x^{63}-x^{62}-x^{61}-x^{60}\\
-x^{59}+2x^{58}+5x^{57}+3x^{56}-2x^{55}-10x^{54}-3x^{53}-2x^{52}+6x^{51}+6x^{50}\\
+x^{49}+9x^{48}-3x^{47}-7x^{46}-8x^{45}-8x^{44}+10x^{43}+6x^{42}+8x^{41}-5x^{40}\\
-12x^{39}+7x^{38}-7x^{37}+7x^{36}+x^{35}-3x^{34}+10x^{33}+x^{32}-6x^{31}-2x^{30}\\
-10x^{29}-3x^{28}+2x^{27}+9x^{26}-3x^{25}+14x^{24}-8x^{23}\quad\ -7x^{21}+9x^{20}\\
+3x^{19}\!-4x^{18}\!-10x^{17}\!-7x^{16}\!+12x^{15}\!+7x^{14}\!+2x^{13}\!-12x^{12}\!-4x^{11}\!-2x^{10}\\
+5x^{9}+x^{7}\quad\ -7x^{6}+7x^{5}-4x^{4}+12x^{3}-6x^{2}+3x-6\ =\ 0 \quad\quad\quad
\end{smallmatrix}</math>
|1987
|'''''[[Algebraic number|<math>\mathbb{A}</math>]]'''''
|-
|Tetapan Prévost, [[tetapan Fibonacci timbal-balik]] <ref name=":57">{{cite book|author=Gérard P. Michon|year=2005|url=http://www.numericana.com/answer/constants.htm#prevost|title=Numerical Constants|publisher=Numericana}}</ref>
|<math display="block"> \Psi </math>
|3.35988 56662 43177 55317 <ref group="Mw">{{MathWorld|ReciprocalFibonacciConstant|Reciprocal Fibonacci Constant}}</ref><ref group="OEIS" name=":2">{{OEIS2C|A079586}}</ref>
|<math display="block">\sum_{n=1}^{\infty} \frac{1}{F_n} = \frac{1}{1} +  \frac{1}{1} + \frac{1}{2} + \frac{1}{3} + \frac{1}{5} + \frac{1}{8} + \frac{1}{13} + \cdots</math>
dimana <math>F_n</math> adalah [[deret Fibonacci]].
|Sebelum tahun 1988<ref name=":2" group="OEIS" />
|'''''[[Irrational number|<math>\mathbb{R} \setminus \mathbb{Q}</math>]]'''''
|-
|[[Tetapan Brun|Tetapan Brun<sub> 2</sub>]] = Σ balikan [[bilangan prima kembar]] <ref name=":53">{{cite book|author=Thomas Koshy|year=2007|url=https://books.google.com/books?id=d5Z5I3gnFh0C&q=Brun+constant&pg=PA118|title=Elementary Number Theory with Applications|publisher=Elsevier|isbn=978-0-12-372-487-8|page=119}}</ref>
|<math display="block">{B}_{\,2}</math>
|1.90216 05831 04 {{refn|group=Mw|name=Brun's Constant|{{MathWorld|BrunsConstant|Brun's Constant}}}}<ref name=":0" group="OEIS">{{OEIS2C|A065421}}</ref>
|<math display="block"> \underset{ p,\, p+2: \text{ prima}}{\sum \left(\frac1{p}+\frac1{p+2}\right)} = \left(\frac{1}{3} \! + \! \frac{1}{5}\right) + \left(\frac{1}{5} \! + \! \frac{1}{7}\right) + \left(\frac{1}{11} \! + \! \frac{1}{13}\right) + \cdots </math>
|1989<ref name=":0" group="OEIS" />
|
|-
|[[Tetapan Hafner–Sarnak–McCurley]] (1) <ref>{{cite book|author=Steven R. Finch|year=2003|url=https://books.google.com/books?id=Pl5I2ZSI6uAC&q=%22Hafner-Sarnak-McCurley+constant%22&pg=PA110|title=Mathematical Constants|isbn=978-3-540-67695-9|page=110}}</ref>
|<math display="block">{\sigma}</math>
|0.35323 63718 54995 98454 <ref group="Mw">{{MathWorld|Hafner-Sarnak-McCurleyConstant|Hafner-Sarnak-McCurley Constant}}</ref><ref group="OEIS">{{OEIS2C|A085849}}</ref>
|<math display="block"> \prod_{k=1}^{\infty}\left\{1-[1-\prod_{j=1}^n \underset{p_k: \text{ prima}}{(1-p_k^{-j})]^2}\right\}</math>
|1993
|
|-
|[[Paking Apollo|Dimensi fraktal dari pengepakan Apollo mengenai lingkaran]] <br /><ref>{{cite book|author=Benoit Mandelbrot|year=2004|url=https://books.google.com/books?id=q0AmBQAAQBAJ&q=1.305686729&pg=PA184|title=Fractals and Chaos: The Mandelbrot Set and Beyond|isbn=978-1-4419-1897-0}}</ref><ref>{{cite book|author=Curtis T. McMullen|year=1997|url=http://abel.math.harvard.edu/~ctm/papers/home/text/papers/dimIII/dimIII.pdf|title=Hausdorff dimension and conformal dynamics III: Computation of dimension}}</ref>
|<br /><math display="block">\varepsilon</math>
|1.30568 6729 oleh Thomas & Dhar<br />1.30568 8 oleh McMullen <ref group="Mw">{{MathWorld|ApollonianGasket|Apollonian Gasket}}</ref><ref group="OEIS">{{OEIS2C|A052483}}</ref>
|
|1994 <br />1998
|
|-
|[[Tetapan Backhouse]] <ref>{{cite book|author=Eric W. Weisstein|year=2003|url=https://books.google.com/books?id=aFDWuZZslUUC&q=Backhouse+constant&pg=PA151|title=CRC Concise Encyclopedia of Mathematics, Second Edition|publisher=CRC Press|isbn=978-1-58488-347-0|page=151}}</ref>
|<math display="block">{B}</math>
|1.45607 49485 82689 67139 <ref group="Mw">{{MathWorld|BackhousesConstant|Backhouse's Constant}}</ref><ref group="OEIS">{{OEIS2C|A072508}}</ref>
|<math display="block">\lim_{k \to \infty}\left | \frac{q_{k+1}}{q_k} \right \vert </math>dimana <math>Q(x)=\frac{1}{P(x)}= \! \sum_{k=1}^\infty q_k x^k </math> dan <math> P(x) =  \sum_{k=1}^\infty \underset{p_k\text{ prima}}{p_k x^k} = 1+2x+3x^2+5x^3+\cdots</math>
|1995
|
|-
|[[Barisan Fibonacci acak|Tetapan Viswanath]] <ref>{{cite book|author=DIVAKAR VISWANATH|year=1999|url=http://www.ams.org/journals/mcom/2000-69-231/S0025-5718-99-01145-X/S0025-5718-99-01145-X.pdf|title=RANDOM FIBONACCI SEQUENCES AND THE NUMBER 1.13198824...|publisher=MATHEMATICS OF COMPUTATION}}</ref>
|<math display="block">{C}_\text{Vi}</math>
|1.13198 82487 943 <ref group="Mw">{{MathWorld|RandomFibonacciSequence|Random Fibonacci Sequence}}</ref><ref group="OEIS">{{OEIS2C|A078416}}</ref>
|<math display="block">\lim_{n \to \infty}|a_n|^\frac{1}{n}</math>dimana <math>a_n</math> adalah [[barisan Fibonacci]]
|1997
|[[Transcendental number|<math>\mathbb{T}</math>]]?
|-
|Tetapan waktu <ref name=":20">{{cite book|author1=Kunihiko Kaneko|author2=Ichiro Tsuda|year=1997|url=https://books.google.com/books?id=7lcINfgupggC&q=0.63212&pg=PA208|title=Complex Systems: Chaos and Beyond|isbn=978-3-540-67202-9|page=211}}</ref>
|<math display="block">{\tau}</math>
|0.63212 05588 28557 67840 <ref group="Mw">{{MathWorld|e|e}}</ref><ref group="OEIS">{{OEIS2C|A068996}}</ref>
|<math display="block"> \begin{align}
\lim_{n \to \infty} 1-\frac {!n}{n!} &= \lim_{n \to \infty} P(n) \\
&= \int_{0}^{1}e^{-x}dx \\
&= 1{-}\frac{1}{e} \\
&= \sum \limits_{n=1}^{\infty} \frac{(-1)^{n+1}}{n!} =
\frac{1}{1!}{-}\frac{1}{2!}{+}\frac{1}{3!}{-}\frac{1}{4!}{+}\frac{1}{5!}{-}\frac{1}{6!}{+}\cdots
\end{align} </math> 
|Sebelum tahun 1997<ref name=":20" />
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Tetapan Komornik–Loreti]] <ref>{{cite book|author=Christoph Lanz|url=http://dmg.tuwien.ac.at/drmota/DiplomarbeitLanz.pdf|title=k-Automatic Reals|publisher=Technischen Universität Wien}}</ref>
|<math display="block">{q}</math>
|1.78723 16501 82965 93301 <ref group="Mw">{{MathWorld|Komornik-LoretiConstant|Komornik-Loreti Constant}}</ref><ref group="OEIS">{{OEIS2C|A055060}}</ref>
|<math display="block">1 = \!\sum_{n=1}^\infty \frac{t_k}{q^k}</math>akar real dari <math>\prod_{n=0}^\infty \!\left (\! 1 {-} \frac{1}{q^{2^n}} \!\right ) \! {+} \frac{q{-}2}{q{-}1}=0</math>, dimana <math>t_k</math> adalah [[barisan Thue–Morse]].
|1998
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Barisan lipatan kertas beraturan]] <ref>{{cite book|author1=Francisco J. Aragón Artacho|author2=David H. Baileyy|author3=Jonathan M. Borweinz|author4=Peter B. Borwein|year=2012|url=http://carma.newcastle.edu.au/jon/tools1.pdf|title=Tools for visualizing real numbers.|page=33|access-date=2021-03-24|archive-date=2017-02-20|archive-url=https://web.archive.org/web/20170220175429/https://carma.newcastle.edu.au/jon/tools1.pdf|dead-url=yes}}</ref><ref name=":18">{{cite book|year=1998|url=http://www.jgiesen.de/Divers/PapierFalten/PapierFalten.pdf|title=Papierfalten}}</ref>
|<math display="block">{P_f}</math>
|0.85073 61882 01867 26036 {{refn|group=Mw|name=Paper Folding Constant|{{MathWorld|PaperFoldingConstant|Paper Folding Constant}}}}<ref group="OEIS">{{OEIS2C|A143347}}</ref>
|<math display="block"> \sum_{n=0}^{\infty} \frac {8^{2^n}}{2^{2^{n+2}}-1} = 
\sum_{n=0}^{\infty} \cfrac {\tfrac {1}{2^{2^n}}} {1-\tfrac{1}{2^{2^{n+2}}}} </math>
|Sebelum tahun 1998<ref name=":18" />
|
|-
|[[Konjektur Artin pada akar primitif|Tetapan Artin]] <ref>{{cite book|author=Paulo Ribenboim|year=2000|url=https://books.google.com/books?id=EiYvlcimEi4C&q=1.9287800&pg=PA66|title=My Numbers, My Friends: Popular Lectures on Number Theory|publisher=Springer|isbn=978-0-387-98911-2|page=66}}</ref>
|<math display="block">{C}_\text{Artin}</math>
|0.37395 58136 19202 28805 <ref group="Mw">{{MathWorld|ArtinsConstant|Artin's Constant}}</ref><ref group="OEIS">{{OEIS2C|A005596}}</ref>
|<math display="block">\prod_{n=1}^{\infty} \left(1-\frac{1}{p_n(p_n-1)}\right) </math>dimana <math>p_n</math> adalah prima.
|1999
|
|-
|[[Tetapan MRB]] <ref>{{cite book|author=Richard E. Crandall|year=2012|url=http://www.perfscipress.com/papers/UniversalTOC25.pdf|title=Unified algorithms for polylogarithm, L-series, and zeta variants|publisher=perfscipress.com|archive-url=https://web.archive.org/web/20130430193005/http://www.perfscipress.com/papers/UniversalTOC25.pdf|archive-date=2013-04-30|url-status=bot: unknown}}</ref><ref>{{cite arXiv|eprint=0912.3844|class=math.CA|author=RICHARD J. MATHAR|title=NUMERICAL EVALUATION OF THE OSCILLATORY INTEGRAL OVER exp(I pi x)x^1/x BETWEEN 1 AND INFINITY|year=2010}}</ref><ref>{{cite book|author=M.R.Burns|year=1999|url=http://marvinrayburns.com/Original_MRB_Post.html|title=Root constant|publisher=Marvin Ray Burns}}</ref>
|<math display="block"> C_\text{MRB}</math>
|0.18785 96424 62067 12024 <ref group="Mw">{{MathWorld|MRBConstant|MRB Constant}}</ref><ref group="Ow">[[oeis:wiki/MRB constant|MRB constant]]</ref><ref group="OEIS">{{OEIS2C|A037077}}</ref>
|<math display="block"> \sum_{n=1}^{\infty} (-1)^n (n^{1/n}-1) =  - \sqrt[1]{1} + \sqrt[2]{2} - \sqrt[3]{3} + \cdots</math>
|1999
|
|-
|[[Tetapan perulangan kuadrat Somos]] <ref name=":45">{{cite journal|author1=Jesus Guillera|author2=Jonathan Sondow|year=2008|title=Double integrals and infinite products for some classical constants via analytic continuations of Lerch's transcendent|journal=The Ramanujan Journal|volume=16|issue=3|pages=247–270|arxiv=math/0506319|doi=10.1007/s11139-007-9102-0|s2cid=119131640}}</ref>
|<math display="block">{\sigma}</math>
|1.66168 79496 33594 12129 <ref name=":2" group="Mw">{{MathWorld|SomossQuadraticRecurrenceConstant|SomossQuadraticRecurrence Constant}}</ref><ref group="OEIS">{{OEIS2C|A065481}}</ref>
|<math display="block">\prod_{n=1}^\infty n^{{1/2}^n} = \sqrt {1 \sqrt {2 \sqrt{3 \cdots}}} = 1^{1/2} \; 2^{1/4} \; 3^{1/8} \cdots </math>
|1999<ref name=":2" group="Mw" />
|[[Transcendental number|<math>\mathbb{T}</math>]]?
|}

== 2000 hingga seterusnya ==

{| class="wikitable sortable"
!Nama
!Simbol
!Ekspansi desimal
!Rumus
!Tahun
!Himpunan
|-
|[[Tetapan Foias]] (α) <ref>{{cite book|author=Andrei Vernescu|year=2007|url=http://ssmr.ro/gazeta/gma/2007/gma-1-2007.pdf|title=Gazeta Matemetica Seria a revista de cultur Matemetica Anul XXV(CIV)Nr. 1, Constante de tip Euler generalízate|page=14}}</ref>
|<math display="block">F_\alpha</math>
|1.18745 23511 26501 05459 {{refn|group=Mw|name=Foias|{{MathWorld|FoiasConstant|Foias Constant}}}}<ref group="OEIS">{{OEIS2C|A085848}}</ref>
|<math display="block"> x_{n+1} = \left( 1 + \frac{1}{x_n} \right)^n\text{ untuk }n=1,2,3,\ldots </math>
Tetapan Foias merupakan bilangan real tunggal sehingga jika <math> x_1 = \alpha </math> maka barisan divergen menuju <math> \infty </math>. Ketika <math> x_1 = \alpha </math>, <math>\, \lim_{n\to\infty} x_n \frac{\ln n}{n} = 1 </math>.
|2000
|
|-
|[[Tetapan Foias]] (β)
|<math display="block">F_\beta</math>
|2.29316 62874 11861 03150 {{refn|group=Mw|name=Foias}}<ref group="OEIS">{{OEIS2C|A085846}}</ref>
|<math display="block"> x^{x+1} = (x+1)^x</math>
|2000
|
|-
|[[Fungsi gamma#Rumus Raabe|Rumus Raabe]] <ref name=":5">{{cite arXiv|eprint=1106.1042|class=math.NT|author=István Mezö|title=On the integral of the fourth Jacobi theta function|year=2011}}</ref>
|<math display="block">{\zeta'(0)}</math>
|0.91893 85332 04672 74178 <ref group="Mw">{{MathWorld|LogGammaFunction|Log Gamma Function}}</ref><ref group="OEIS">{{OEIS2C|A075700}}</ref>
|<math display="block">\int\limits_a^{a+1}\log\Gamma(t)\,\mathrm dt = \tfrac12\log2\pi + a\log a - a,\quad a \ge 0</math>
|Sebelum tahun 2011<ref name=":5" />
|
|-
|[[Tetapan Kepler–Bouwkamp]] <ref name=":11">{{cite arXiv|eprint=1301.6293|class=math.MG|author=Richard J. Mathar|title=Circumscribed Regular Polygons|year=2013}}</ref>
|<math display="block">{\rho}</math>
|0.11494 20448 53296 20070 <ref group="Mw">{{MathWorld|PolygonInscribing|Polygon Inscribing}}</ref><ref group="OEIS">{{OEIS2C|A085365}}</ref>
|<math display="block"> \prod_{n=3}^\infty \cos\left(\frac{\pi}{n} \right) = \cos\left(\frac{\pi}{3} \right) \cos\left(\frac{\pi}{4} \right) \cos\left(\frac{\pi}{5}\right) ...</math>
|Sebelum tahun 2013<ref name=":11" />
|<br /><br /><br />
|-
|[[Tetapan Prouhet–Thue–Morse]] <ref name=":22">{{cite book|author=Steven Finch|year=2014|url=http://www.people.fas.harvard.edu/~sfinch/csolve/erradd.pdf|title=Errata and Addenda to Mathematical Constants|publisher=Harvard.edu|page=53|access-date=2013-12-17|archive-url=https://web.archive.org/web/20160316175639/http://www.people.fas.harvard.edu/~sfinch/csolve/erradd.pdf|archive-date=2016-03-16|url-status=dead}}</ref>
|<math display="block"> \tau </math>
|0.41245 40336 40107 59778  <ref group="Mw">{{MathWorld|Thue-MorseConstant|Thue-Morse Constant}}</ref><ref group="OEIS">{{OEIS2C|A014571}}</ref>
|<math display="block"> \sum_{n=0}^{\infty} \frac{t_n}{2^{n+1}} </math> dimana <math> {t_n} </math> merupakan [[barisan Thue–Morse]] dan<math display="block"> \tau(x) = \sum_{n=0}^{\infty} (-1)^{t_n} \, x^n  = \prod_{n=0}^{\infty} ( 1 - x^{2^n} )</math>
|Sebelum tahun 2014<ref name=":22" />
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Tetapan Heath–Brown–Moroz]] <ref name=":25">{{cite book|author=J. B. Friedlander|author2=A. Perelli|author3=C. Viola|author4=D.R. Heath-Brown|author5=H.Iwaniec|author6=J. Kaczorowski|year=2002|url=https://books.google.com/books?id=NuDimaRIVVsC&q=%22Heath-Brown%20and%20Moroz%22&pg=PA29|title=Analytic Number Theory|publisher=Springer|isbn=978-3-540-36363-7|page=29}}</ref>
|<math display="block">{C}_\text{HBM}</math>
|0.00131 76411 54853 17810 <ref group="Mw">{{MathWorld|Heath-Brown-MorozConstant|Heath-Brown-Moroz Constant}}</ref><ref group="OEIS">{{OEIS2C|A118228}}</ref>
|<math display="block">\underset{p_n: \, \text{prima}}{\prod_{n = 1}^\infty \left(1-\frac{1}{p_n}\right)^7\left(1+\frac{7p_n+1}{p_n^2}\right)} </math>
|Sebelum tahun 2002<ref name=":25" />
|[[Transcendental number|<math>\mathbb{T}</math>]]?
|-
|[[Tetapan Lebesgue (interpolasi)|Tetapan Lebesgue]] <ref name=":27">{{cite journal|author=Horst Alzer|year=2002|title=Journal of Computational and Applied Mathematics, Volume 139, Issue 2|url=http://ac.els-cdn.com/S0377042701004265/1-s2.0-S0377042701004265-main.pdf?_tid=c20cf466-f4bf-11e3-bd9c-00000aacb362&acdnat=1402859198_57de7868bcc50086f092c66898ec6a33|journal=Journal of Computational and Applied Mathematics|volume=139|issue=2|pages=215–230|doi=10.1016/S0377-0427(01)00426-5}}</ref>
|<math display="block">{C_1}</math>
|0.98943 12738 31146 95174 <ref group="Mw">{{MathWorld|LebesgueConstants}}</ref><ref group="OEIS">{{OEIS2C|A243277}}</ref>
|<math display="block">\lim_{n\to\infty}\!\! \left(\!{L_n{-}\frac{4}{\pi^2}\ln(2n{+}1)}\!\!\right)\!{=}
\frac{4}{\pi^2}\!\left({\sum_{k=1}^\infty \!\frac{2\ln k}{4k^2{-}1}}
{-}\frac{\Gamma'(\tfrac12)}{\Gamma(\tfrac12)}\!\!\right)</math>
|Sebelum tahun 2002<ref name=":27" />
|
|-
|[[Tetapan Bois–Romand kedua]] ([[:es:Constante Du Bois Reymond|es]]) <ref name=":28">{{cite book|author=Steven R. Finch|year=2003|url=https://archive.org/details/mathematicalcons0000finc|title=Mathematical Constants|publisher=Cambridge University Press|isbn=978-3-540-67695-9|page=[https://archive.org/details/mathematicalcons0000finc/page/238 238]|url-access=registration}}</ref>
|<math display="block">{C_2}</math>
|0.19452 80494 65325 11361 <ref group="Mw">{{MathWorld|DuBoisReymondConstants|Du Bois Reymond Constants}}</ref><ref group="OEIS">{{OEIS2C|A062546}}</ref>
|<math display="block">\frac{e^2-7}{2} = \int_0^\infty \left|{\frac{\mathrm d}{\mathrm dt}\left(\frac{\sin t}{t}\right)^n}\right|\,\mathrm dt-1 </math>
|Sebelum tahun 2003<ref name=":28" />
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Darab Euler#Tetapan terkemuka|Tetapan Stephens]] <ref name=":30">{{cite book|author=Steven Finch|year=2005|url=http://www.people.fas.harvard.edu/~sfinch/csolve/clss.pdf|title=Class Number Theory|publisher=Harvard University|page=8|access-date=2014-04-15|archive-url=https://web.archive.org/web/20160419150530/http://www.people.fas.harvard.edu/~sfinch/csolve/clss.pdf|archive-date=2016-04-19|url-status=dead}}</ref>
|<math display="block"> C_S </math>
|0.57595 99688 92945 43964 <ref group="Mw">{{MathWorld|StephensConstant|Stephen's Constant}}</ref><ref group="OEIS">{{OEIS2C|A065478}}</ref>
|<math display="block"> \prod_{n = 1}^\infty \left(1 - \frac{p}{p^3-1}\right) </math>
|Sebelum tahun 2005<ref name=":30" />
|[[Transcendental number|<math>\mathbb{T}</math>]]?
|-
|[[Darab Euler#Tetapan terkemuka|Tetapan Taniguchi]]  <ref name=":30" />
|<math display="block"> C_T </math>
|0.67823 44919 17391 97803 <ref group="Mw">{{MathWorld|EulerProduct|Euler Product}}</ref><ref group="OEIS">{{OEIS2C|A175639}}</ref>
|<math display="block"> \prod_{n = 1}^\infty \left(1 - \frac{3}{{p_n}^3}+\frac{2}{{p_n}^4}+\frac{1}{{p_n}^5}-\frac{1}{{p_n}^6}\right) </math>dimana <math>p_n </math> adalah prima.
|Sebelum tahun2005<ref name=":30" />
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]?'''''
|-
|[[Tetapan Copeland–Erdős]] <ref name=":40">{{cite book|author=Yann Bugeaud|year=2012|url=https://books.google.com/books?id=NeEpoAf7k0IC&q=0.235711131719232931&pg=PA87|title=Distribution Modulo One and Diophantine Approximation|publisher=Cambridge University Press|isbn=978-0-521-11169-0|page=87}}</ref>
|<math display="block">{\mathcal{C}_{CE}}</math>
|0.23571 11317 19232 93137 <ref group="Mw">{{MathWorld|Copeland-ErdosConstant|Copeland-Erdos Constant}}</ref><ref group="OEIS">{{OEIS2C|A033308}}</ref>
|<math display="block">\sum _{n=1}^\infty \frac{p_n} {10^{n + \sum \limits_{k=1}^n \lfloor \log_{10}{p_k} \rfloor }}</math>
|Sebelum tahun 2012<ref name=":40" />
|'''''[[Irrational number|<math>\mathbb{R} \setminus \mathbb{Q}</math>]]'''''
|-
|[[Dimensi Hausdorff]], [[segitiga Sierpinski]] <ref name=":41">{{cite book|author=Eric W. Weisstein|year=2002|url=https://books.google.com/books?id=aFDWuZZslUUC&q=1.584962500&pg=PA2685|title=CRC Concise Encyclopedia of Mathematics|publisher=CRC Press|isbn=978-1-58488-347-0|edition=Second|page=1356}}</ref>
|<math display="block">{\log_2 3}</math>
|1.58496 25007 21156 18145 <ref group="Mw">{{MathWorld|PascalsTriangle|Pascal's Triangle}}</ref><ref group="OEIS">{{OEIS2C|A020857}}</ref>
|<math display="block">\frac {\log 3}{\log 2} = \frac{\underset{n=0}{\overset{\infty}\sum}^\infty \frac{1}{2^{2n+1}(2n+1)}}{\sum_{n=0}^\infty \frac{1}{3^{2n+1}(2n+1)}} = \frac{\frac{1}{2}+\frac{1}{24}+\frac{1}{160}+\cdots}{\frac{1}{3}+\frac{1}{81}+\frac{1}{1215}+\cdots} </math>
|Sebelum tahun 2002<ref name=":41" />
|'''''[[Transcendental number|<math>\mathbb{T}</math>]]'''''
|-
|[[Tetapan Landau–Ramanujan]] <ref name=":49">{{cite book|author1=Richard E. Crandall|author2=Carl B. Pomerance|year=2005|url=https://books.google.com/books?id=ZXjHKPS1LEAC&q=Landau-Ramanujan+constant&pg=PA80|title=Prime Numbers: A Computational Perspective|publisher=Springer|isbn=978-0387-25282-7|page=80}}</ref>
|<math display="block">K</math>
|0.76422 36535 89220 66299 <ref group="Mw">{{MathWorld|Landau-RamanujanConstant|Landau-Ramanujan Constant}}</ref><ref group="OEIS">{{OEIS2C|A064533}}</ref>
|<math display="block">\frac1{\sqrt2}\prod_{p\equiv3\!\!\!\!\!\mod \! 4}\!\! \underset{\!\!\!\!\!\!\!\! p: \text{ prima}}{\left(1-\frac1{p^2}\right)^{-\frac{1}{2}}}\!\!=\frac\pi4\prod_{p\equiv1\!\!\!\!\!\mod \!4}\!\! \underset{\!\!\!\! p: \text{ prima}}{\left(1-\frac1{p^2}\right)^\frac{1}{2}}</math>
|Sebelum tahun 2005<ref name=":49" />
|[[Transcendental number|<math>\mathbb{T}</math>]]?
|-
|[[Tetapan Brun|Tetapan Brun<sub> 4</sub>]] = Σ balikkan [[bilangan prima kembar empat]] <ref name=":54">{{cite book|author1=Pascal Sebah|author2=Xavier Gourdon|year=2002|url=http://numbers.computation.free.fr/Constants/Primes/twin.pdf|title=Introduction to twin primes and Brun's constant computation|name-list-style=amp}}</ref>
|<math display="block">{B}_{\,4}</math>
|0.87058 83799 75 {{refn|group=Mw|name=Brun's Constant}}<ref group="OEIS">{{OEIS2C|A213007}}</ref>
|<math display="block">\sum \left(\frac1{p}+\frac1{p+2}+\frac1{p+6}+\frac1{p+8}\right) \scriptstyle \quad {p,\; p+2,\; p+6,\; p+8: \text{ prima}} </math>
<math display="block"> \left(\frac1{5} + \frac1{7} + \frac1{11} + \frac1{13}\right)+ \left(\frac1{11} + \frac1{13} + \frac1{17} + \frac1{19}\right) + \dots</math>
|Sebelum tahun 2002<ref name=":54" />
|
|-
|Radikal tersarang [[Ramanujan]] <ref name=":56">{{cite book|author1=Bruce C. Berndt|author2=Robert Alexander Rankin|year=2001|url=https://books.google.com/books?id=TT1T8A94xNcC&q=Ramanujan+nested+radical&pg=PA219|title=Ramanujan: essays and surveys|publisher=American Mathematical Society, London Mathematical Society|isbn=978-0-8218-2624-9|page=219}}</ref>
|<math display="block"> R_{5} </math>
|2.74723 82749 32304 33305
|<math display="block">\sqrt{5+\sqrt{5+\sqrt{5-\sqrt{5+\sqrt{5+\sqrt{5+\sqrt{5-\cdots}}}}}}}\;=\frac{2+\sqrt{5}+\sqrt{15-6\sqrt{5}}}{2}</math>
|Sebelum tahun 2001<ref name=":56" />
|'''''[[Algebraic number|<math>\mathbb{A}</math>]]'''''
|}

== Tetapan lainnya ==
{| class="wikitable sortable"
!Nama
!Simbol
!Ekspansi desimal
!Rumus
!Tahun
!Himpunan
|-
|[[Kubik Pangeran Rupert#Perampatan|Tetapan tesseract deVicci]]
|<math display="block">{f_{(3,4)}}</math>
|1.00743 47568 84279 37609<ref group="Mw">{{MathWorld|PrinceRupertsCube|Prince Rupert's Cube}}</ref><ref group="OEIS">{{OEIS2C|A243309}}</ref>
|Kubik terbesar yang dapat lewat melalui dalam sebuah hiperkubik empat dimensi.
Akar positif dari <math>4x^4{-}28x^3{-}7x^2{+}16x{+}16=0</math>.
|
|'''''[[Algebraic number|<math>\mathbb{A}</math>]]'''''
|-
|[[Tetapan Glaisher–Kinkelin]]
|<math display="block">{A}</math>
|1.28242 71291 00622 63687<ref group="Mw">{{MathWorld|Glaisher-KinkelinConstant|Glaisher-Kinkelin Constant}}</ref><ref group="OEIS">{{OEIS2C|A074962}}</ref>
|<math display="block"> e^{\frac{1}{12}-\zeta^\prime(-1)} =
 e^{\frac{1}{8}-\frac{1}{2}\sum\limits_{n=0}^\infty \frac{1}{n+1} \sum\limits_{k=0}^n \left(-1\right)^k \binom{n}{k} \left(k+1\right)^2 \ln(k+1)}</math>
|
|
|}

== Lihat pula ==

* [[Invarian (matematika)]]
* [[Daftar simbol matematika|Daftar simbol matematis]]
* [[Daftar simbol matematis berdasarkan subjek]]
* [[List of numbers]]
* [[Mathematical constants by continued fraction representation]]
* [[Particular values of the Riemann zeta function]]

== Catatan ==
{{reflist|group=nb}}

== Referensi ==
{{reflist|colwidth=30em}}

=== Situs MathWorld Wolfram.com ===
{{reflist|group=Mw|2}}

=== Situs OEIS.com ===
{{reflist|group=OEIS|2}}

=== Situs OEIS Wiki ===
{{reflist|group=Ow|2}}

== Daftar pustaka ==
{{refbegin|30em}}
* {{cite book|last1=Arndt|first1=Jörg|last2=Haenel|first2=Christoph|year=2006|url=https://books.google.com/books?id=QwwcmweJCDQC|title=Pi Unleashed|publisher=Springer-Verlag|isbn=978-3-540-66572-4 <!--isbn only volume 1-->|access-date=2013-06-05}} English translation by Catriona and David Lischka.
* {{Citation|last=Jensen|first=Johan Ludwig William Valdemar|title=Note numéro 245. Deuxième réponse. Remarques relatives aux réponses du MM. Franel et Kluyver|journal=L'Intermédiaire des Mathématiciens|volume=II|pages=346–347|year=1895}}
{{refend}}

== Pranala luar ==

* [https://web.archive.org/web/20181030072352/http://isc.carma.newcastle.edu.au/standard Inverse Symbolic Calculator, Plouffe's Inverter]
* [http://mathworld.wolfram.com/topics/Constants.html Constants - from Wolfram MathWorld]
* [[oeis:wiki/Index to OEIS|On-Line Encyclopedia of Integer Sequences (OEIS)]]
* [https://web.archive.org/web/20120912131952/http://www.people.fas.harvard.edu/~sfinch/ Steven Finch's page of mathematical constants]
* [http://numbers.computation.free.fr/Constants/constants.html Xavier Gourdon and Pascal Sebah's page of numbers, mathematical constants and algorithms]

{{MathematicalSymbolsNotationLanguage}}

{{DEFAULTSORT:Mathematical Constants and Functions}}
[[Kategori:Tetapan matematis]]
[[Kategori:Daftar yang berkaitan dengan matematika]]
[[Kategori:Tabel matematis]]