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- From: M18117@mwvm.mitre.org
- Subject: Re: Non-linear Systems of Equations
- Message-ID: <16B6298C4.M18117@mwvm.mitre.org>
- Sender: news@linus.mitre.org (News Service)
- Nntp-Posting-Host: mwvm.mitre.org
- Organization: The MITRE Corporation, McLean VA 22102
- References: <fck=A6@engin.umich.edu>
- Date: Tue, 26 Jan 1993 15:51:37 GMT
- Lines: 21
-
- In article <fck=A6@engin.umich.edu>
- Shawn D. Way <shiva@engin.umich.edu> writes:
-
- >
- > I am trying top solve systems of Non-Linear algebra equations with
- >Mathematica for Windows. The regular Solve[] command or the NSolve
- >command will not work. How do you go about this?
-
- The Mathematica commands Solve[], NSolve[], and FindRoot[] can all be used to
- solve systems of nonlinear equations. The breakdown is as follows:
- Solve[] - attempts to find symbolic solutions
- NSolve[] - Finds numerical solutions to polynomial equations
- FindRoot[] - Finds numerical solutions to general equations
-
- FindRoot[] uses a simple Newton's method, and may or may not work well in a
- particular case.
-
- The problem is that the normal convention for Mathematica was not used here.
- Usually, the function beginning with N is a numerical version of the
- symbolic function that does not begin with N. This convention was not
- followed in this case.
-