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Re: Method option to Solve

  • To: mathgroup at
  • Subject: [mg71539] Re: [mg71519] Method option to Solve
  • From: Daniel Lichtblau <danl at>
  • Date: Wed, 22 Nov 2006 05:22:21 -0500 (EST)
  • References: <>

Andrew Moylan wrote:
> Hi all,
> The usage string for the option name Method says "Method is an option
> to Solve, related functions, and various numerical functions, which
> specifies what algorithm to use in evaluating the result.". The list of
> options for Solve does indeed include Method, with a default value of
> 3:
> In[11]:=
> Options[Solve]
> Out[11]=
> {InverseFunctions -> Automatic, MakeRules -> False,
>   Method -> 3, Mode -> Generic, Sort -> True,
>   VerifySolutions -> Automatic, WorkingPrecision -> Infinity}
> However, I have been unable to find any other reference to the Method
> option to Solve in the documentation. Can anyone explain what this
> option does, and/or refer me to a part of the documentation that
> explains it?
> Cheers,
> Andrew

Short answer: No.

Longer answer: That option is purely legacy. It will go away some day. 
So far as I can tell there is no particular need for MakeRules either.

Daniel Lichtblau
Wolfram Research

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