URL:
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http://savannah.gnu.org/bugs/?24871>
Summary: suggestion, add support for E_n
Project: GNU Scientific Library
Submitted by: bjg
Submitted on: Tue Nov 18 17:16:12 2008
Category: None
Severity: 1 - Wish
Operating System:
Status: Confirmed
Assigned to: None
Open/Closed: Open
Release: 1.11
Discussion Lock: Any
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Details:
Dear GSL group,
Thank you very much for your work on GSL. I use it much in Octave.
I think it would be great if you could improve the GSL routines
for computations of exponential integrals so that they can accept complex
arguments too. A good algorithm for this was published in
ACM Transactions on Mathematical Software
Donald E. Amos, Computation of Exponential Integrals of a Complex Argument,
vol.16, no. 2, p.169--177, 1990,
http://doi.acm.org/10.1145/78928.78933
ACM Transactions on Mathematical Software
Donald E. Amos, Algorithm 683: A Portable FORTRAN Subroutine for Exponential
Integrals of a Complex Argument, vol.16, no. 2,
p.178--182, 1990,
http://doi.acm.org/10.1145/78928.78934
The fortran code is available at
http://www.netlib.org/toms/683
http://www.netlib.no/netlib/toms/683
http://www.mirrorservice.org/sites/netlib.bell-labs.com/netlib/toms/683.gz
http://scicomp.ewha.ac.kr/netlib/toms/683
With best wishes,
Oleg
---
D.Sc. Oleg V. Motygin,
Institute of Problems in Mech Engineering
Russian Academy of Sciences
V.O., Bol'shoj pr. 61
199178 St.Petersburg
Russia
email: o.v.motygin@........., mov222@.........
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