I can't use the PDE toolbox, is it because I haven't buy this app?

When I enter 'pdetool' in the command window, it returns: Undefined function or variable 'pdetool' How could this happen?

Answer 1

[Mischa Kim]

You probably have not installed and/or licensed the PDE toolbox? Try in the MATLAB Command Window:

which -all pdetool

and you should get something like:

C:\Program Files\MATLAB\R2013b\toolbox\pde\pdetool.m|