For a vector A = ax 3x cos(3y) - ay sin(2x) y, a) Write a MATLAB code to evaluate A dl around the contour shown in figure b) Evaluate VX A then write a MATLAB code to evaluate S(V x A) ds over the shaded area c) Compare the results of the previous two points and comment. Hints: - - y4 (0, 3) (0, 0) (3, 0) (3, -3) X A. dl is translated into A. dl when used in computer calculations (V x A). ds is translated into ((V x A) dx) dy when used in computer calculations The discretization strategy is to use { < 0.1*(minimum dimension in the problem)} as the discretization steps. i.e. to use dx, dy & dz to be {