I have written a program for a Crank-Nicolson scheme using MATLAB. I have solutions for u(x,t) at x=0:0.1:1.0, at t intervals of 0, 0.005, 0.001, 0.015 and 0.02.
We have the exact solution available, and are required to plot the difference between the exact and calculated values of u(x,t) with respect to x and t.
I am not sure how to do this, any help would be much appreciated.
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