2. Let x = (xi) be any 1 x m vector. The m x m expomatrix of x is a matrix A = (aij) defined by Qij = 2li2; (a) Write a MATLAB function Expomat that takes a vector x as input, and computes the correspon- ding expomatrix A. HINT: ij is the ijth entry of a specific m x m matrix. X = (b) Write and execute a MATLAB script Asum that uses Expomat with input vector (0.5, 0.52,0.54, ..., 1.74, 1.76) and out put matrix A to calculate the sum of the first 50 entries in the 17th column of A. This calculated sum must be obtained using a for loop and stored as output variable S