Nonlinear Heat Transfer In a Thin Plate - bug in example?

Hello,

I am trying to run the script on nonlinear heat transfer in a thin plate: http://www.mathworks.com/help/pde/examples/nonlinear-heat-transfer-in-a-thin-plate.html

However at the following line: pb = pde(numberOfPDE); I get the following error message: (FEMtest is my own script)

"Error using pde (line 8) Not enough input arguments. Error in FEMtest (line 61) pb = pde(numberOfPDE);"

could you help me getting rid of this message?

Also I noticed my 'pde.m' looks funny, at least to me:

"function [c,f,s] = pde(x,t,u,DuDx)

%PDE pde demo function

% Copyright 1984-2005 The MathWorks, Inc. % $Revision: 1.2.4.1 $ $Date: 2005/06/09 04:39:07 $

c = pi^2; f = DuDx; s = 0; "

Answer 1

[Bill Greene]

What version of MATLAB are you running?

The documentation page you are pointing to is for the R2014b version of MATLAB. The error you are getting is at a line for a feature that was introduced in the R2014b version of PDE Toolbox.

Bill

Answer 2

[Peter Rindt]

2012, I see...

[Bill Greene]

If your version is R2012b (note the "b"), you can run that example simply by typing "heatTransferThinPlateExample" at the MATLAB command prompt. That example requires the nonlinear capabilities of the parabolic function. Before R2012b, parabolic was limited to linear equations.

Bill