How can I write the matlab

[Rik]

What did you try?

[Amna almarzouqi]

try to write observation on the shape of the signal with the change in number of harmonics(10, 20, 30, 40, 50 and 100).

[Setsuna Yuuki.]

with the fourier series?

[Amna almarzouqi]

yes

[Rik]

You are very lucky with Bastian. I doubt many people would have answered your question without something more substantial.

You can find guidelines for posting homework on this forum here. If you have trouble with Matlab basics you may consider doing the Onramp tutorial (which is provided for free by Mathworks).

Answer 1

[Setsuna Yuuki.]

I made a function that maybe help you:

Link: https://es.mathworks.com/matlabcentral/fileexchange/82783-waveform-fourier-series-formas-de-onda-series-de-fourier

% if you use this parameters 
[a,b] = wff([5 10 100],1e-3,1)
%you obtain:

in the link there is more information