f coefficient in PDEtool: exponential function of state.u

Hi,

I am currently working on solving a pde imposing c coefficient as an exponential function of the unknow and the location, as below:

cCoef= @(location,state) k.*(exp(state.u-location.y));

specifyCoefficients(model,'m',0,'d',0,'c',cCoef,'a',0,'f',0);

However, when I run the code it does not to consider the exponential relationship.

I could not find any question answering this problem, only addressing how to write a coefficent dependent only on location or only on the unknow.

Thanks,

Diana

Answer 1

[Priyanka Kondapalli]

Hi,

Below are few links that can help you guide during the exponential function

Exponential - MATLAB exp (mathworks.com)

Coefficients of polynomial - MATLAB coeffs (mathworks.com)