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Re: Help Wanted: IDL Math Expert [message #9811 is a reply to message #9809]

Tue, 19 August 1997 00:00

Jack Saba
Messages: 30
Registered: January 1996

Member

David Fanning wrote:
>
Why not treat it as a pair of coupled nonlinear equations and use
one of the standard techinques, e.g., Newton's method?

> Hi Folks,
>
> I had a friend ask a question about IDL that I didn't know how
> to answer. (Uh, math is not my strength, you understand. :-))
>
> Suppose I have a set of raw data that is described
> theoretically by two parametric equations. And suppose
> I need to fit these two parametric equations to the data
> since there is no mathematical way to convert the x(t)
> and y(t) equations into a y(x) form. Is there a
> curve fitting routine in IDL that can handle parametric
> equations? Or, failing that, has anyone handled something
> like this in IDL and would be willing to give us a little
> help?
>
> Many thanks,
>
> David
>
> -----------------------------------------------------------
> David Fanning, Ph.D.
> Fanning Software Consulting
> Customizable IDL Programming Courses
> Phone: 970-221-0438 E-Mail: davidf@dfanning.com
> Coyote's Guide to IDL Programming: http://www.dfanning.com

--
Jack Saba <jsaba@magus.stx.com>

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[Message index]

		Re: Help Wanted: IDL Math Expert By: David Ritscher on Wed, 20 August 1997 00:00
		Re: Help Wanted: IDL Math Expert By: John Votaw on Tue, 19 August 1997 00:00
		Re: Help Wanted: IDL Math Expert By: Jack Saba on Tue, 19 August 1997 00:00
		Re: Help Wanted: IDL Math Expert By: J.D. Smith on Tue, 19 August 1997 00:00
		Re: Help Wanted: IDL Math Expert By: Brad Gom on Tue, 19 August 1997 00:00
		Re: Help Wanted: IDL Math Expert By: Marty Ryba on Tue, 19 August 1997 00:00

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