Plot a function with Fouier Series

</matlabcentral/answers/uploaded_files/79778/Capture.JPG> I have to plot the function using Fourier Series, but I'm having trouble doing so. I already found the coeffients a0=0.40528 a5= 0.016211 a11=0.0033495 a51=0.00015582 I put a picture of the problem and my code. Thank you. Please help.

Answer 1

[Samir Mitha]

https://www.mathworks.com/help/matlab/ref/fft.html

Use the fast fourier tranform function.