Answer Happy

I just need the Matlab programing for this question so who so ever is solving it please be aware I won't rate if you solve the question and expect rating.
Question 5: An eight-element linear array with 1/2 spacing is excited with equal amplitudes. To steer the main beam to a direction 60° below the broadside direction, what should be the incremental phase delay between adjacent elements? Also, give the expression for the array factor and use Matlab to plot the pattern.