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* Can't get equations in compile time for multidimensional root finding.
       [not found] <999522083.1062.ezmlm@sources.redhat.com>
@ 2001-12-19 13:20 ` pschen
  2001-12-19 13:20   ` Brian Gough
  0 siblings, 1 reply; 2+ messages in thread
From: pschen @ 2001-12-19 13:20 UTC (permalink / raw)
  To: gsl-discuss


Hello:

     It seems that I must get equations in compile time and run the multidimensional
     root finding solver. If the equations will be get at runtime, how can I run the
     multidimensional root finding solver?
     How to write the program?
     Anyone occur this problem?
     Thanks very much.

						Ps. Chen

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: Can't get equations in compile time for multidimensional root finding.
  2001-12-19 13:20 ` Can't get equations in compile time for multidimensional root finding pschen
@ 2001-12-19 13:20   ` Brian Gough
  0 siblings, 0 replies; 2+ messages in thread
From: Brian Gough @ 2001-12-19 13:20 UTC (permalink / raw)
  To: pschen; +Cc: gsl-discuss

pschen writes:
 >      It seems that I must get equations in compile time and run the
 >      multidimensional root finding solver. If the equations will be
 >      get at runtime, how can I run the multidimensional root
 >      finding solver?  How to write the program?  Anyone occur this
 >      problem?  Thanks very much.

You can use the void * params argument to pass a pointer to the
runtime representation of your equations and evaluate it.  

I believe the program 'NumExp' listed on the GSL web page
http://sources.redhat.com/gsl/ does this for 1-d equations.

regards
Brian Gough

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2001-12-19 13:20 ` Can't get equations in compile time for multidimensional root finding pschen
2001-12-19 13:20   ` Brian Gough

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