Please, how to plot for this code?
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k = -2:0.1:2;
g = ((2*cos(2*k))-2)/(1i*k);
plot(k,g)
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Read about element by element operations.
k = -2:0.1:2;
g = ((2*cos(2*k))-2)./(1i*k); % use ./
plot(k,abs(g))
hold on
plot(k,real(g))
plot(k,imag(g))
legend('abs','real','imaginary')
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