Conststruct each of the following matrices , using built-in functions whenever possible . Please use MATLAB and show code .

a) A, which is a 3 x 3 matrix of all zeroes , except that all entries in row 2 are equal to -3.

b) B, which is a 3 x 3 identity matrix

c) C, which is a 3 x 3 matrix , obtained from B where the entire rows 2 and 3 contain values -2 and -3 respectively .

d) D, which is a 3 x 3 diagonal matrix, with the numbers 1, 2, and 3, on the diagonal ; do not assign element by element .

e) construct a column vector, v, containing entries : 3.65, -2.08,11.

f) find g = largest integer values that are smaller or equal to the values in vector v .