Fourier series coefficients of even periodic signal in Matlab

[mfecky]

hi everyone. I am a beginner to matlab, i want to calculate the Fourier series Coefficients of a discrete periodic signal with period N=100 and plot it.

the signal is real and even

 

[n.karthick]

you can use the fft function in MATLAB to find the frequency spectrum of the discrete signal. type 'help fft' in command prompt for more information

 

[mfecky]

thnx :)