Fast Fourier Transform experiments
$ python3 code/polynomials.py "1x^2 + 2x^1 + 1" "1x^2 + 2x^1 + 1"
(1.0x^2 + 2.0x + 1.0) * (1.0x^2 + 2.0x + 1.0) = 1.0000000000000007x^4 + 4.0x^3 + 6.0x^2 + 3.9999999999999996x + 0.9999999999999994
$ python3 code/integers.py 1234 5678
(1234) * (5678) = 07006652