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Bounding the gamma function in terms of the trigonometric and exponential functions
Journal article   Peer reviewed

Bounding the gamma function in terms of the trigonometric and exponential functions

Feng Qi and Mansour Mahmoud
Acta scientiarum mathematicarum (Szeged), Vol.83(1-2), pp.125-141
01/01/2017
DOI: https://doi.org/10.14232/actasm-016-813-x

Abstract

Mathematics Physical Sciences Science & Technology
In the paper, the authors bound the gamma function, the digamma function, and the harmonic numbers in terms of the exponent of fractional functions and several trigonometric functions such as the tangent, hyperbolic tangent, secant, and cosecant functions.

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