Basic plotting with Matplotlib is much like MATLAB plotting
from matplotlib.pyplot import *
plot(t, u)
show()
Compare u
curve with \( \uex(t) \):
t_e = linspace(0, T, 1001) # fine mesh
u_e = exact_solution(t_e, I, a)
plot(t_e, u_e, 'b-') # blue line for u_e
plot(t, u, 'r--o') # red dashes w/circles