MATLAB Fourier Series Urgent assistance

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for some reason I can't set it up. I'm used to plotting Bode Plots and Frequency Response and semilogx but I have no idea about how to do it with Fourier Series. I know it's between -2T and +2T. But I don't know how to code it. I don't know where to start. And how would I be able to change the maximum value of n and having the same line.
How do I go about producing a fundamental frequency? I really need help and I would appreciate any answers.
Thank you.

Accepted Answer

Salaheddin Hosseinzadeh
Salaheddin Hosseinzadeh on 12 Sep 2014
Define a sampling frequency of 100 KHz, then create a sine wave, of 50 Hz use fft to verify it's frequency. That will be a good start.
I attached a file to this answer, on how to use fft, it helped people having the same problem, should be good for you as well.
Let us know about your progress.

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