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Plotting Infinite series in matlab

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Kyu Hwan Shim
Kyu Hwan Shim on 14 Nov 2019
Answered: David Hill on 14 Nov 2019
e(t)=x(t)-xn(t), how can i plot e(t)??

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Accepted Answer

David Hill
David Hill on 14 Nov 2019
You can plot for various values of t between 0 and 1.
t=.3%not sure what you want to plot against, I held t constant and plotted N vs. error
n=1:2:100000;%have to pick something for infinity (100,000 should be good for about 5 decimal places)
N=1:2:500;%whatever you want N to go up to
x=(4/pi)*sum((1./n).*sin(n*pi*t));
e=arrayfun(@(y)x-(4/pi)*sum((1./(1:2:y)).*sin((1:2:y)*pi*t)),N);
plot(N,e);

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