$(4)($MATLAB Exercise$).$ Use MATLAB to represent the output of the Fourier series of

questions $1$ and $2.$ Plot the resulting function for the series using: i$)$ the first $5$ terms, ii$)$ the

first $10$ terms and iii$)$ the first $50$ terms. For each output, write a few sentences comparing

the results for the $5,10$ and $50$ term representations. You must also provide the. $m$ files for

each output. $(6$ Marks$)$