Final complex output for cos(2*pi*n):
[ 4.0000000e+00+0.0000000e+00j -1.2246468e-16-1.2246468e-16j
  0.0000000e+00-2.4492936e-16j  3.6739404e-16-3.6739404e-16j]
Final complex output for sin(pi*n):
[ 2.44929360e-16+0.0000000e+00j  2.44929360e-16+2.4492936e-16j
 -7.34788079e-16-2.0996637e-31j  2.44929360e-16-2.4492936e-16j]
Final complex output for 3n^3 + 2n^2 + 5n + 2:
[174.+0.00000000e+00j -42.+1.04000000e+02j -82.-3.33103929e-14j
 -42.-1.04000000e+02j]
Final complex output for Unit Ramp:
[ 6.+0.00000000e+00j -2.+2.00000000e+00j -2.-7.34788079e-16j
 -2.-2.00000000e+00j]
Final complex output for Unit Step:
[ 4.0000000e+00+0.0000000e+00j -1.2246468e-16-1.2246468e-16j
  0.0000000e+00-2.4492936e-16j  3.6739404e-16-3.6739404e-16j]
Twiddle factor:
[[ 1.0000000e+00+0.0000000e+00j  1.0000000e+00+0.0000000e+00j
   1.0000000e+00+0.0000000e+00j  1.0000000e+00+0.0000000e+00j]
 [ 1.0000000e+00+0.0000000e+00j  6.1232340e-17-1.0000000e+00j
  -1.0000000e+00-1.2246468e-16j -1.8369702e-16+1.0000000e+00j]
 [ 1.0000000e+00+0.0000000e+00j -1.0000000e+00-1.2246468e-16j
   1.0000000e+00+2.4492936e-16j -1.0000000e+00-3.6739404e-16j]
 [ 1.0000000e+00+0.0000000e+00j -1.8369702e-16+1.0000000e+00j
  -1.0000000e+00-3.6739404e-16j  5.5109106e-16-1.0000000e+00j]]