[Bug-gsl] [bug #24871] suggestion, add support for E_n

[Brian Gough]

URL:
  <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

    _______________________________________________________

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: address@hidden, address@hidden



_______________________________________________
Bug-gsl mailing list
address@hidden
http://lists.gnu.org/mailman/listinfo/bug-gsl






    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?24871>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/