a) Write a function that computes the Frobenius norm of a matrix (i.e. sum of squared elements). The function should be defined as: float fnorm (float *a, int Nrows, int Ncols) // "a" is a 1D array that holds elements of a (Nrows x Ncols) matrix in row major order { // write your code here } b) Write a C program that asks for elements of a matrix, and calculates the Frobenius norm using the function defined above. The program should first ask for the dimensions (Nrows,Ncols) of the matrix. Then, it should dynamically allocate memory for a 1D array of size (Nrows x Ncols). This array should be used to hold the elements of the matrix entered on screen in a row major order (i.e. elements of the first row followed by elements of the second, third...). The value computed using the fnorm function should be printed on screen. #include #include int main () { // write your code here