A standard electrical engineering function is the "pulse", which is a square function of height $V$ and duration T$.$ Find the Fourier series representing this function. your answer should be a function of frequency of course. How many terms in the series does it take to accurately represent this square function? you should then plot your answer for the first term in the series, the sum of the first and second terms, the sum of the first, second, and third terms in the series, the sum of the first, second, third, and fourth terms in the series and the sum of the first, second, third, forth, and fifth terms in the series. you should be able to show that the answer indeed approaches the square function.