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real and imag parts plots

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Nawaf al raiqi
Nawaf al raiqi on 5 Dec 2020
Answered: Monisha Nalluru on 8 Dec 2020
how i plot real part and imag part for the first 16 harmonics for x(t) ;(k = 0,1,2...,14,15). for this signal x(t) = cos(t/4)+cos(3*t/4)

Answers (1)

Monisha Nalluru
Monisha Nalluru on 8 Dec 2020
For my understanding you want to plot the above equation for t=0,1,2,3,...,15
There is no imaginary part for above equation so
As an example code
t = linspace(0,15,16);
x = cos(t/4)+cos(3*t/4);
plot(t, x, 'b-', 'LineWidth', 2);
xlabel('t', 'FontSize', 20);
ylabel('x', 'FontSize', 20);

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