On some inequalities for the gamma and psi functions
Mathematics of Computation
On the asymptotic representation of the Euler gamma function by Ramanujan
Journal of Computational and Applied Mathematics
Handbook of Mathematical Functions, With Formulas, Graphs, and Mathematical Tables,
Handbook of Mathematical Functions, With Formulas, Graphs, and Mathematical Tables,
Gurland's ratio for the gamma function
Computers & Mathematics with Applications
A class of integral approximations for the factorial function
Computers & Mathematics with Applications
Full length article: A completely monotonic function involving q-gamma and q-digamma functions
Journal of Approximation Theory
Two families of approximations for the gamma function
Numerical Algorithms
Unified treatment of several asymptotic formulas for the gamma function
Numerical Algorithms
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The aim of this paper is to improve the Ramanujan formula for approximation the gamma function. A fast asymptotic series is constructed.