Math2.org Math Tables: Gamma Constant

(Math)
gamma = gamma = 0.5772156649 0153286061 ...

gamma = lim (n->inf) ( 1 + 1/2 + 1/3 + 1/4 + ... + 1/n - ln(n) ) = 0.5772156649...

\[\gamma = -\int_0^\infty e<sup>-x</sup> \ln x \, dx\]

\[ \Gamma ' (1) = -\gamma \] (see Gamma Function)