Question: Let U be the polygonal path passing through the points (0,0),(2,0),(2,1),(3,1),(3,3),(2,3),(2,4) and (0,4). Let U be the region enclosed by U. Given Form a uniform

Let U be the polygonal path passing through the points (0,0),(2,0),(2,1),(3,1),(3,3),(2,3),(2,4) and (0,4). Let U be the region enclosed by U. Given Form a uniform grid on U with grid spacing h=1. Show that using the standard 5 -point formula to approximate (10) results in a linear system Av=b where AR44 and bR41. Identify A and b explicitly
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