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Digamma and trigamma functions [PDF]

Stata Technical Bulletin, 1999
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Complete Monotonicity of Functions Involving the Qq-Trigamma and q{q}-Tetragamma Functions

Revista De La Real Academia De Ciencias Exactas, Fisicas Y Naturales - Serie A: Matematicas, 2015
Feng Qi
exaly  

COMMENTS ON TWO COMPLETELY MONOTONIC FUNCTIONS INVOLVING THE $q$-TRIGAMMA FUNCTION

2015
Qi, Feng, Liu, Fang-Fang, Shi, Xiao-Ting
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Necessary and Sufficient Conditions for a Difference Defined by Four Derivatives of a Function Containing Trigamma Function to be Completely Monotonic

Applied and Computational Mathematics, 2022
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Table of the gamma, digamma and trigamma functions

2008
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Remark AS R88: A Remark on Algorithm AS 121: The Trigamma Function

Applied Statistics, 1991
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Random Variate Generation for the Digamma and Trigamma Distributions

Journal of Statistical Computation and Simulation, 1992
Luc Devroye
exaly