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Mathematical Constants
| I |  |
| Infinity |  |
| Pi |  |
| Degree |  : degrees to radians conversion factor |
| GoldenRatio |  |
| E |  |
| EulerGamma | Euler's constant  |
| Catalan | Catalan's constant  |
| Khinchin | Khinchin's constant  |
| Glaisher | Glaisher's constant  |
Euler's constant EulerGamma is given by the limit 
. It appears in many integrals, and asymptotic formulas. It is sometimes known as the Euler-Mascheroni constant, and denoted 
.
Catalan's constant Catalan is given by the sum 
. It often appears in asymptotic estimates of combinatorial functions. It is variously denoted by 
, 
, or 
.
Khinchin's constant Khinchin (sometimes called Khintchine's constant) is given by 
. It gives the geometric mean of the terms in the continued fraction representation for a typical real number.
Glaisher's constant Glaisher 
(sometimes called the Glaisher-Kinkelin constant) satisfies 
, where 
is the Riemann zeta function. It appears in various sums and integrals, particularly those involving gamma and zeta functions.
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