Re: Mathieu functions

[Brian Gough <bjg at network-theory dot co dot uk>]

Lowell Johnson writes:
 > Well, I developed Fortran versions of the angular and radial
 > Mathieu functions (complex arguments) as part of my thesis back
 > around '90.  So I suppose I can dust off the old code, convert it
 > to C, and align it with the GSL coding standards.

This sounds ideal.  Nobody else is working on them to my knowledge.
You might want to do some searching and see if there have been any new
developments in the field since 1990.

 > I'm not sure how quickly I'll get this all done, so if someone
 > wants to take my (practically uncommented) Fortran and do the
 > conversion, let me know.  Otherwise, I'll pick away at it as time
 > allows.
 >  The complex radial Mathieu functions are functions of the complex
 > Bessel and Hankel functions.  Does the GSL compute complex Bessel
 > functions?

No. I should have added them to the task list.

Brian