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please help me, how do I make the code for the equation in the following picture?
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![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/285410/image.png)
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Peter O
il 17 Apr 2020
You can't code an infinite sum exactly, but fortunately, this one is bounded (x^2 on the denominator and the numerator is bounded between -1 and 1).
Pick a big n:
n_max=100;
ns = 1:n_max;
sum_n = cumsum( sin(2*ns)./ns.^2);
plot(ns, sum_n)
You will see it very quickly converges, after 20 terms or so.
5 Commenti
Ameer Hamza
il 21 Apr 2020
"You can't code an infinite sum exactly"
Peter, I think you meant the opposite.
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