Mathematical Constants

mXparser - built-in Mathematical Constants

Key word	Category	Description	Example	Since
pi	Constant Value	Pi, Archimedes' constant or Ludolph's number	2*pi	1.0
e	Constant Value	Napier's constant, or Euler's number, base of Natural logarithm	e*3	1.0
[gam]	Constant Value	Euler-Mascheroni constant	2*[gam]	1.0
[phi]	Constant Value	Golden ratio	[phi]*3	1.0
[PN]	Constant Value	Plastic constant	2*[PN]	1.0
[B*]	Constant Value	Embree-Trefethen constant	[B]3	1.0
[F'd]	Constant Value	Feigenbaum constant alfa	2*[F'd]	1.0
[F'a]	Constant Value	Feigenbaum constant delta	[F'a]*3	1.0
[C2]	Constant Value	Twin prime constant	2*[C2]	1.0
[M1]	Constant Value	Meissel-Mertens constant	[M1]*3	1.0
[B2]	Constant Value	Brun's constant for twin primes	2*[B2]	1.0
[B4]	Constant Value	Brun's constant for prime quadruplets	[B4]*3	1.0
[BN'L]	Constant Value	De Bruijn-Newman constant	2*[BN'L]	1.0
[Kat]	Constant Value	Catalan's constant	[Kat]*3	1.0
[K*]	Constant Value	Landau-Ramanujan constant	2[K]	1.0
[K.]	Constant Value	Viswanath's constant	[K.]*3	1.0
[B'L]	Constant Value	Legendre's constant	2*[B'L]	1.0
[RS'm]	Constant Value	Ramanujan-Soldner constant	[RS'm]*3	1.0
[EB'e]	Constant Value	Erdos-Borwein constant	2*[EB'e]	1.0
[Bern]	Constant Value	Bernstein's constant	[Bern]*3	1.0
[GKW'l]	Constant Value	Gauss-Kuzmin-Wirsing constant	2*[GKW'l]	1.0
[HSM's]	Constant Value	Hafner-Sarnak-McCurley constant	[HSM's]*3	1.0
[lm]	Constant Value	Golomb-Dickman constant	2*[lm]	1.0
[Cah]	Constant Value	Cahen's constant	[Cah]*3	1.0
[Ll]	Constant Value	Laplace limit	2*[Ll]	1.0
[AG]	Constant Value	Alladi-Grinstead constant	[AG]*3	1.0
[L*]	Constant Value	Lengyel's constant	2[L]	1.0
[L.]	Constant Value	Levy's constant	[L.]*3	1.0
[Dz3]	Constant Value	Apery's constant	2*[Dz3]	1.0
[A3n]	Constant Value	Mills' constant	[A3n]*3	1.0
[Bh]	Constant Value	Backhouse's constant	2*[Bh]	1.0
[Pt]	Constant Value	Porter's constant	[Pt]*3	1.0
[L2]	Constant Value	Lieb's square ice constant	2*[L2]	1.0
[Nv]	Constant Value	Niven's constant	[Nv]*3	1.0
[Ks]	Constant Value	Sierpinski's constant	2*[Ks]	1.0
[Kh]	Constant Value	Khinchin's constant	[Kh]*3	1.0
[FR]	Constant Value	Fransen-Robinson constant	2*[FR]	1.0
[La]	Constant Value	Landau's constant	[La]*3	1.0
[P2]	Constant Value	Parabolic constant	2*[P2]	1.0
[Om]	Constant Value	Omega constant	[Om]*3	1.0
[MRB]	Constant Value	MRB constant	2*[MRB]	1.0
[li2]	Constant Value	li(2) - logarithmic integral function at x=2	[li2]*3	2.3
[EG]	Constant Value	Gompertz constant	2*[EG]	2.3