Recent content by NiclasN

Thanks a lot! I did not consider that c can be a matrix with coefficients dependent on (r,z) i.e. (x,y) but apparently this is possible so maybe you are right. I'll try again.

Yes, I meant the toolbox. I failed because I could not specify this form of equation. It's not a time dependent equation in the sense that you have one variable (t) that occurs only in first derivative. There is first and second derivatives in both variables. Also I think for the toolbox you...

Maybe I should have colled the thread more accurately "numerical solution to a 2nd order pde with dirchlet boundary conditions". Is there no software that can solve this without discretizing it "by hand"?

Hi, I try to numerically solve the following partial differential equation for N(r,z) with a Dirichlet boundary condition. -\frac{\partial^2N}{\partial r^2}-\frac{\partial^2N}{\partial z^2} + f(r,z) \frac{\partial N}{\partial r} + g(r,z) \frac{\partial N}{\partial z} = h(r,z)...