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Thread Subject:
Nonlinear equations PDE toolbox!

Subject: Nonlinear equations PDE toolbox!

From: Fermi's Liquor theory

Date: 29 Mar, 2013 19:10:27

Message: 1 of 2

Hey all,

I'm trying to solve an equation of the form del^2(u) = f(u) for a non-polynomial function f. I really can't see how to do this with the gui, which seems to only be able to solve very basic equations. I have been told that it is possible to export the scripts and define the equation manually, but really have not managed to find any examples of that being done.

I would appreciate links to documentation that explain this very much!

Cheers
x

Subject: Nonlinear equations PDE toolbox!

From: Alan_Weiss

Date: 3 Apr, 2013 17:21:54

Message: 2 of 2

On 3/29/2013 3:10 PM, Fermi's Liquor theory wrote:
> Hey all,
>
> I'm trying to solve an equation of the form del^2(u) = f(u) for a
> non-polynomial function f. I really can't see how to do this with the
> gui, which seems to only be able to solve very basic equations. I have
> been told that it is possible to export the scripts and define the
> equation manually, but really have not managed to find any examples of
> that being done.
> I would appreciate links to documentation that explain this very much!
> Cheers x

Perhaps some relatively recent documentation would help:
http://www.mathworks.com/help/pde/ug/scalar-coefficients-in-string-form.html
http://www.mathworks.com/help/pde/ug/scalar-coefficients-in-function-form.html
A worked example:
http://www.mathworks.com/help/pde/ug/scalar-functional-form-and-calling-syntax.html

Alan Weiss
MATLAB mathematical toolbox documentation

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