[Fourier Transform] Aug 19 2015

Fourier transform development for nerdamer is going slow.
nerdamer/experimental
So far these tests work:
As you can see some of the basic functions work. However, exp,sin,cos are not working. They are harder to implement because I need to factor PI from the inputs. So I modified the core to view PI only as a symbol for now.
The other problems I face are euler's identityBug #13.
Also any equation of the form (a+bi)^(f(x)) is wrong.
I will have to correct JavaScript's infinity to produce the correct behaviour. -- Brosnan Yuen