Matlab Programming help! Please provide working code that I can copy and paste for following question.

In the figure shown below, a rectangle with length 'c' and width 'd' is inscribed in a semi-circle with origin (a, b) and radius 'r' Write a function (named 'inside') that takes the coordinates (xp, yp) of a point P as arguments, and returns 1 if P is inside the gray region, and 0 otherwise. Define a, b, c, d, and r as global variables inside the function