Function gamma

Compute the gamma function of a value using Lanczos approximation for small values, and an extended Stirling approximation for large values.

For matrices, the function is evaluated element wise.

Syntax

gamma(n)

Parameters

Parameter Type Description
n number | Array | Matrix A real or complex number

Returns

Type Description
number | Array | Matrix The gamma of n

Examples

gamma(5);       // returns 24
gamma(-0.5);    // returns -3.5449077018110335
gamma(i);  // returns -0.15494982830180973 - 0.49801566811835596i

See also

combinations, factorial, permutations