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ex4_4 - even harmonics are zero theta =-1)^(k-1/2 1*pi/2 xN...

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% computes trigonometric Fourier series for Example 4.4 % used to generate Figures 4.8 - 4.11 t = -3:6/1000:3; N = input('Number of harmonics '); c0 = 0.5; w0 = pi; xN = c0*ones(1,length(t)); % dc component for k=1:2:N,
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Unformatted text preview: % even harmonics are zero theta = ((-1)^((k-1)/2) - 1)*pi/2; xN = xN + 2/k/pi*cos(k*w0*t + theta); end plot(t,xN) title(['Example 4.4, N = ',num2str(N)]) xlabel('Time (sec)') ylabel(['x',num2str(N),'(t)'])...
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