Question $5$

Explain the code in Matlab what does each instruction do$.$

$Fs=150$;

$t=0$:$\frac{1}{F}s$:$1$;

$f=5$;

$x=$ square $(2****t**f)$;

$nfft=1024$

$x=fft(x,nfft)$;

$x=x(1$:$nff\frac{t}{2})$;

$mx\frac{?}{a}=bs(x)$;

$f=(0$:$nff\frac{t}{2}-1)**F\frac{s}{n}fft$;

figure$(1)$;

plot$(t,x)$;

title$(\text{'}$Signal$\text{'})$;

xlabel$(\text{'}$Time $($s$)\text{'})$;

ylabel$(\text{'}$Amplitude$\text{'})$;

figure$(2)$;

plot$(f,mx)$;

title$(\text{'}$ Wave'$)$;

xlabel$(\text{'}$Frequency $\text{'})$;

ylabel$(\text{'}$Power$\text{'})$;c