Mathematica incorporates the latest algorithms—some original to Wolfram Research—for evaluating mathematical constants to any number of digits of precision. For basic constants like

and

, millions of digits can routinely be computed in seconds.
Pi (

) — pi

3.14 (entered as
Esc p Esc)
E (

) — exponential constant
e
2.718 (entered as
Esc ee Esc "exponential e")
Degree (
°) — conversion factor from radians to degrees (entered as
Esc deg Esc)
GoldenRatio — golden ratio

1.618
EulerGamma — Euler's constant

0.577
StieltjesGamma — Stieltjes constants
n
Catalan — Catalan's constant
C
0.916
Glaisher — Glaisher's constant
A
1.282
Khinchin — Khinchin's constant
K
2.685
ChampernowneNumber — Champernowne numbers
Cb
I (

) —

(entered as
Esc ii Esc "imaginary i")
Root — general root of a polynomial
N — evaluate to any precision
RealDigits — list of digits
ContinuedFraction — continued fraction expansion
FullSimplify — simplify symbolic expressions involving constants