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I have functioning MATLAB code for my solution of the 3D Diffusion equation (using a 3D Fourier transform and Crank-Nicolsen) that runs just from the command window and automatically plots the results. However, it seems like my solution just decays to zero regardless of what initial condition I use, or boundary conditions I implement. Could I toss this code to somebody so they can run it on their rig and let me know if they can diagnose it? I've been stuck on it for days and I'd much appreciate it.

If you'd like me to post it all in the thread using the code formatting tool, I can do that, but I'll take the suggestion first before completely diluting the post. Thanks guys