Fourier interpolation



Dear Maxima Folks!
I need to interpolate some function using different methods. I already 
succeeded with natural cubic splines and quintic semi-local splines 
interpolation. All in C++. Now, for comparison, I have to interpolate 
the same function using Fourier series. My supervisor insist me using 
calculation packages (yes, like Maxima). But I'm new to Maxima and it 
seems hard to start for me. Is there an integrated magic function that 
would does the task for me? Sorry, I was unable to google anything 
appropriated.
Thanks in advance!
--
Hiisi.
Registered Linux User #487982. Be counted at: http://counter.li.org/