A Fourier series representation for a square wave, with frequency fo, is given by the following infinite summation: 4 4 4 f(t) = sin(2 . fot) + sin (2T 3 fot) + 5-sin(2 . 5h0 + 7hsin (2m . 7f0t) 4 Note, the above equation assumes time in units of seconds and frequency in units of Hertz. Write an m-file that computes the summation shown above, truncated after different numbers of terms. The truncated series provides an approximation of the square wave function