Fourier Series plotting in matlab

How do you plot the first ten harmonics of a fourier series that has a dc a0 component of 1 and a bn component of (4/npi)sin(npi/2t) and no an component. This code is giving me the value of the first ten harmonics but I don't know how to plot the summation

x=3/pi;
f=0;
t=linspace(-3,2)
for i=1:1:10
an=x*1/i
f=f+an*sin(i*(pi/2).*t);

end

Answer 1

[Ahmet Cecen]

Is this what you are looking for? There are better ways to do it, but for now focus on learning how the figure, plot and hold commands interact.

 x=3/pi;
 f=0;
 t=linspace(-3,2)
 figure;
 hold on;
 for i=1:1:10
     an=x*1/i
     f=f+an*sin(i*(pi/2).*t);
     plot(t,f)
 end

[Carol]

Ok how would you just plot it if you had it in the standard forurier form and you are trying to find the sum of the first ten harmonics because I don't think it is taking into account the dc

[Ahmet Cecen]

If you just want the final signal:

 x=3/pi;
 f=0;
 t=linspace(-3,2)
 for i=1:1:10
     an=x*1/i
     f=f+an*sin(i*(pi/2).*t);  % Summation Term
 end

 f=f+1; % Add DC A0 component to the final signal.

 figure;plot(t,f);