Accession Number : ADA131936

Title :   A Computer Subroutine for Evaluating Polygamma Functions for Complex Arguments.

Descriptive Note : Final rept.,

Corporate Author : ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Walbert,James N

PDF Url : ADA131936

Report Date : Jul 1983

Pagination or Media Count : 23

Abstract : The series and formulas used to evaluate polygamma functions are discussed in sufficient detail to enable the user to correctly implement the computer code. Estimates of precision are given, and a listing of the code appears in the appendix.

Descriptors :   *Subroutines, *Functions(Mathematics), Recursive functions, Input, Output, Variables, Computations, Computer programming, Asymptotic series, Fortran, Precision, Estimates

Subject Categories : Numerical Mathematics
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE