B. Using the value of N (or larger) that resulted in convergence in part (A), create a CONTOURF plot of the temperature distribution across the entire plate. Use enough spatial subdivisions to create a useful plot. Comment on the results. Hint: You need to determine what "x" and "y" values to use to make your T matrix. I recommend using a different number of x and y values. Use enough x and y values so that the plot is "smooth".