* Bessel functions with complex arguments
@ 2001-12-19 13:20 Jørgen Berntsen
2001-11-25 11:06 ` Jørgen Berntsen
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Jørgen Berntsen @ 2001-12-19 13:20 UTC (permalink / raw)
To: 'gsl-discuss@sources.redhat.com'
> Dear List members
>
> I'm using the just fantastic GSL library with Borland C++.
>
> I need to evaluate several bessels functions with complex arguments, but
> can only find bessel functions with real arguments. Have I missed
> something or is there a way around this problem?
>
> Thanks for any help
>
> regards, Jørgen Berntsen
^ permalink raw reply [flat|nested] 6+ messages in thread* Bessel functions with complex arguments
2001-12-19 13:20 Bessel functions with complex arguments Jørgen Berntsen
@ 2001-11-25 11:06 ` Jørgen Berntsen
2001-12-19 13:20 ` Jørgen Berntsen
2001-12-19 13:20 ` Brian Gough
2 siblings, 0 replies; 6+ messages in thread
From: Jørgen Berntsen @ 2001-11-25 11:06 UTC (permalink / raw)
To: 'gsl-discuss@sources.redhat.com'
> Dear List members
>
> I'm using the just fantastic GSL library with Borland C++.
>
> I need to evaluate several bessels functions with complex arguments, but
> can only find bessel functions with real arguments. Have I missed
> something or is there a way around this problem?
>
> Thanks for any help
>
> regards, Jørgen Berntsen
^ permalink raw reply [flat|nested] 6+ messages in thread
* Bessel functions with complex arguments
2001-12-19 13:20 Bessel functions with complex arguments Jørgen Berntsen
2001-11-25 11:06 ` Jørgen Berntsen
@ 2001-12-19 13:20 ` Jørgen Berntsen
2001-12-19 13:20 ` Brian Gough
2 siblings, 0 replies; 6+ messages in thread
From: Jørgen Berntsen @ 2001-12-19 13:20 UTC (permalink / raw)
To: 'gsl-discuss@sources.redhat.com'
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> Dear List members
>
> I'm using the just fantastic GSL library with Borland C++.
>
> I need to evaluate several bessels functions with complex arguments, but
> can only find bessel functions with real arguments. Have I missed
> something or is there a way around this problem?
>
> Thanks for any help
>
> regards, Jørgen Berntsen
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Bessel functions with complex arguments
2001-12-19 13:20 Bessel functions with complex arguments Jørgen Berntsen
2001-11-25 11:06 ` Jørgen Berntsen
2001-12-19 13:20 ` Jørgen Berntsen
@ 2001-12-19 13:20 ` Brian Gough
2001-11-26 6:00 ` Brian Gough
2001-12-19 13:20 ` Brian Gough
2 siblings, 2 replies; 6+ messages in thread
From: Brian Gough @ 2001-12-19 13:20 UTC (permalink / raw)
To: Jørgen Berntsen
Cc: 'gsl-discuss@sources.redhat.com'
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Jørgen Berntsen writes:
> > I need to evaluate several bessels functions with complex arguments, but
> > can only find bessel functions with real arguments. Have I missed
> > something or is there a way around this problem?
We're looking for a volunteer to implement them, I think, only the
real case is available in GSL 1.0. The standard reference for the
complex versions is the D.Amos paper in ACM TOMS v12, although there
might be better algorithms available now since that was published in
1986.
regards
Brian Gough
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Bessel functions with complex arguments
2001-12-19 13:20 ` Brian Gough
@ 2001-11-26 6:00 ` Brian Gough
2001-12-19 13:20 ` Brian Gough
1 sibling, 0 replies; 6+ messages in thread
From: Brian Gough @ 2001-11-26 6:00 UTC (permalink / raw)
To: Jørgen Berntsen; +Cc: 'gsl-discuss@sources.redhat.com'
Jørgen Berntsen writes:
> > I need to evaluate several bessels functions with complex arguments, but
> > can only find bessel functions with real arguments. Have I missed
> > something or is there a way around this problem?
We're looking for a volunteer to implement them, I think, only the
real case is available in GSL 1.0. The standard reference for the
complex versions is the D.Amos paper in ACM TOMS v12, although there
might be better algorithms available now since that was published in
1986.
regards
Brian Gough
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Bessel functions with complex arguments
2001-12-19 13:20 ` Brian Gough
2001-11-26 6:00 ` Brian Gough
@ 2001-12-19 13:20 ` Brian Gough
1 sibling, 0 replies; 6+ messages in thread
From: Brian Gough @ 2001-12-19 13:20 UTC (permalink / raw)
To: Jørgen Berntsen; +Cc: 'gsl-discuss@sources.redhat.com'
Jørgen Berntsen writes:
> > I need to evaluate several bessels functions with complex arguments, but
> > can only find bessel functions with real arguments. Have I missed
> > something or is there a way around this problem?
We're looking for a volunteer to implement them, I think, only the
real case is available in GSL 1.0. The standard reference for the
complex versions is the D.Amos paper in ACM TOMS v12, although there
might be better algorithms available now since that was published in
1986.
regards
Brian Gough
^ permalink raw reply [flat|nested] 6+ messages in thread
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2001-12-19 13:20 Bessel functions with complex arguments Jørgen Berntsen
2001-11-25 11:06 ` Jørgen Berntsen
2001-12-19 13:20 ` Jørgen Berntsen
2001-12-19 13:20 ` Brian Gough
2001-11-26 6:00 ` Brian Gough
2001-12-19 13:20 ` Brian Gough
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