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Re: FindRoot with complex equations and variables?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg79199] Re: FindRoot with complex equations and variables?
  • From: dimitris <dimmechan at yahoo.com>
  • Date: Fri, 20 Jul 2007 04:06:38 -0400 (EDT)
  • References: <f7keeg$57m$1@smc.vnet.net>

On 18     , 10:11, AES <sieg... at stanford.edu> wrote:
> I have three eqns involving two complex variables w, u and one purely
> real variable g.  One equation is transcendental and complex (involves
> Bessel functions with the complex variables u, w in the arguments); one
> is complex-valued but algebraic (can easily be separated into real and
> imaginary parts); one is purely real (involves g and the real and
> imaginary parts of one of the complex variables).
>
> Any thoughts on whether FindRoot is likely to be happier (i.e., function
> better) dealing with *three* equations (two complex, one real) involving
> the three variables w, u and g (including having to write Re[w] and
> Im[w] in the real equation), or with four equations (one complex, three
> purely real) involving wr, wi, ur, ui and g , all purely real?

No satisfactory suggestions can be given if we don't
see your equations.

Cheers
D.S.A.



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