Make sure your input solution can be copy/paste to matlab and is executable. Mark will only be given if the code can run successfully in matlab. No partial mark. either full mark or 0 for each part.

request to add comments to each line to specify which part it is for.

1(2). Code to plot the graph above. Semi-circle with radius = 1, and vertical line at x = -0.5 2(6). Code to calculate the shaded area. Do not calculate using math, but try simulation by area ratio. That is, the semi-circle area is ??/2, code to simulate the area ratio between the shaded area and the semi-circle, then use the ratio to calculate the shaded area.

0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 -1 0.9 0.8 0.7 06 05 04 0.3 0.2 0.1 0 0.1 0.2 0.3 04 0.5 06 0.7 0.8 0.9 1