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Function minimization in IDL/WAVE [message #1841]

Wed, 02 March 1994 14:52

rmk2
Messages: 1
Registered: March 1994

Junior Member

Does anyone know where I might find an IDL/PV-WAVE implementation of
Powell (or other) function minimization routines?

Thanks,

Marc Kippen

rmk2@kepler.unh.edu
University of New Hampshire
Space Science Center

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Re: function minimization [message #35551 is a reply to message #1841]

Fri, 20 June 2003 20:11

pogen2
Messages: 2
Registered: June 2003

Junior Member

"lyubo" <lzagorch@cs.wright.edu> wrote in message news:<bcvr1k$imh$1@proxy1.wright.edu>...
> [f1(x,y)-A]^2+ [f2(x,y)-B]^2 = 0
>
> Is there any function in IDL that I can use to minimize the above equation
> with respect to x and y? (A and B are constants).
>
> I was looking at LMFIT but I am not sure if I can apply in this case.
>
> Any feedback would be appreciated.
>
> Thanks,
>
> Lyubo

You can use AMOEBA or POWELL method.
There may also have a few tips in the "FUNCTION MAXIMUM"
thread subject (20 june 2003) ;-)

Pier

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