MATLAB PROGRAM FOR PLOTTING FOURIER SERIES OF A SQUARE WAVE

%
% Illustrating that the Fourier series
% approximation of a square wave
%
% Generate the square wave
clear
clf

t=0:0.01:10;
x = sign(sin(t));
plot(t,x);
hold on

% Generate the Fourier Series Approximation
n = input('Number of terms of Fourier Series = ');

xa=zeros(1,length(t));
for i=1:2:n,
        xa=xa+4/(i*pi)*sin(i*t);
end;
plot(t,xa,'r');


From Monday the 13th, classes will be in NSM 218.

Final Exam on Dec. 10 (Fri.) at 6:00 PM in 210 Nat. Science .