(Solved): MATLAB Plot the original signal \( x(t) \) and the Fourier series approximation of \( x(t) \) over ...

MATLAB

Plot the original signal \( x(t) \) and the Fourier series approximation of \( x(t) \) over one period for \( n^{\prime}=1,3,5,7 \), and 9 , which is expressed as \[ x(t) \approx \frac{1}{2}+\sum_{n=1}^{n^{\prime}} \operatorname{sinc}\left(\frac{n}{2}\right) \cos \left(\frac{2 \pi n t}{4}\right) \] The example of the plot is shown as below.