Iran Civil Center

ISSN: 1735–2614
November 21, 2008
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Mathematical Constants

 Name  Symbol   Value
 Alladi-Grinstead Constant    0.809394020534
 Apéry's Constant    1.202056903
 Artin constant  A  0.3739558136192022
 Backhouse constant    1.456074948582689
 Base of natural, or Napierian, logarithms  e  2.7182818284590452
 Bernstein constant  β  0.2801694990238691
 Brun's constant for twin prime  B2  1.9021605823
 Cahen constant    0.6434105462883380
 Catalan constant  K  0.9159655941772190
 Champernowne number    0.1234567891011121
 Conway constant    1.303577269034296
 Copeland-Erdos constant (prime numbers)    0.2357111317192329
 de Bruijn-Newman constant  Λ  > – 2.7 · 10-9
 Embree-Trefethen constant  Β*  0.70258
 Erdös-Borwein constant  EB  1.606695152415291
 Feigenbaum alpha constant  α  2.502907875095892
 Feigenbaum constant  δ  4.669201609102990
 Frans é n-Robinson constant    2.807770242028519
 gamma or Euler constant or Mascheroni's constant  γ  0.5772156649015328
 Gauss-Kuzmin-Wirsing constant    0.3036630028987326
 Gibbs constant or Wilbraham-Gibbs Constant   G  1.851937051982466
 Glaisher-Kinkelin constant    1.282427129100622
 Golden Ration  φ  1.618033988749894
 Golomb-Dickman constant  λ  0.6243299885435508
 Hadamard-de-la-Vallee-Poussin constant    0.261497212847642
 Hafner-Sarnak-McCurley Constant    0.353236371854995
 Hard Square Entropy Constant  κ  1.503048082
 Khintchine constant  K  2.685452001065306
 Khintchine Harmonic Constant    1.745405662407346
 Komornik-Loreti constant    1.787231650182965
 Landau-Ramanujan constant  K  0.7642236535892206
 Laplace Limit constant  λ  0.6627434193491815
 Lehmer constant    0.5926327182016361
 Lemniscate constant or Gauss constant    2.622057554292119
 Lengyel constant  Λ  1.098685805525187
 Levy constant    3.275822918721811
 Lieb's Square Ice Constant
(Residual Entropy For Square Ice)		    1.5396007178
 Madelung constant (in absolute value)    1.747564594633182
 Magata Constant    3.407069165627256
 Meissel-Mertens constant  M1  0.26149721284764278375
 Mills Constant    1.306377883863080
 MRB Constant    0.1878596424620671
 Niven Constant  C  1.705211140105367
 one-ninth constant    0.1076539192264845
 parking constant or Renyi constant    0.7475979202534114
 Pi [Archimedes' constant or Ludolph's number]  π  3.141592653589793
 Porter's constant    1.467078079433975
 Pythagoras' Constant  Ö2  1.414213562373095
 Rabbit Constant    0.7098034428612913
 Ramanujan-Soldner's constant  μ  1.451369234883381
 Robbin's constant    0.6617071822671762
 Self-Numbers Density Constant  λ  0.252660259
 Shapiro's Cyclic Sum Constant  λ  0.4945668
 Sierpinski Constant  k  2.584981759579253
 The Paris constant    1.098641964394156
 The Trott Constant    0.01084101512231113
 Traveling Salesman Constant    0.7147827007912942
 Twin primes constant  C2  0.6601618158468695
 Vallée's Constant    0.1994588183
 Van der Corput's Constant  m  3.3643175781
 Viswanath's constant  K  1.13198824
 Weierstrass constant    0.4749493799879206