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Is there a parametric version of fsolve?

From: John W. Eaton
Subject: Is there a parametric version of fsolve?
Date: Sun, 2 Mar 1997 15:52:01 -0600

On  2-Mar-1997, Craig Earls <address@hidden> wrote:

| I have a multivariable function:
| x=foo(r,s,t)
| give r and s how can I can find t such that x=0. The order of the
| arguments is not important, but I need to vary the other parameters so
| hard coding them in and using fsolve is very inconvenient. Ideally what
| I would like is something like fsolve, but with extraparameters:
| fsolve("foo",r,3,5)
| where 3 and 5 get passed throught to foo, and r is varied to find zero.
| I am starting to hack to do this but that looks like a steep
| climb for a short project, is ther a better way already extant?

Global variables?

  function foo (r, s, t)

  global s = 3;
  global t = 5;
  function fsolve_foo (x)

    global s;
    global t;

    foo (x, s, t);


  fsolve ("fsolve_foo", r0)



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