How to create time derivative in PDE toolbox

I am working using PDE toolbox and I need one f coefficient to be a derivative of state.u wrt time - how can I do that?

[Gobinda Debnath]

Hi, Zara have you solved this issue, i am facing same problem,

if you got any idea, please help,

much appreciated

Answer 1

[Alan Weiss]

Sorry, I don't know how to do that. The toolbox state structure only gives derivatives with respect to x, y, or z. See f coefficient description.

Alan Weiss

MATLAB mathematical toolbox documentation