This applet was built to check my homework on Fourier analysis. Two functions were approximated. The first was h(x) = abs(2-x). The other was q(x)=x^2-1 on the periodical interval -1<x<1.

I was pleased at the outcome because it allowed me to check my results, which I did by hand on paper. In fact, I made a few errors which I only would have caught by viewing my results on this applet.