fft(ramp8, [c(28, 0.0), c(-4.0, 9.6568542494923797), c(-4.0, 4.0), c(-4.0, 1.6568542494923806), c(-4, 0.0), c(-4.0, -1.6568542494923806), c(-4.0, -4.0), c(-4.0, -9.6568542494923797)]).
fft(alternating8, [c(0, 0.0), c(0.0, 0.0), c(0.0, 0.0), c(0.0, 0.0), c(8, 0.0), c(0.0, 0.0), c(0.0, 0.0), c(0.0, 0.0)]).
dcComponent(ramp8, c(28, 0.0)).
dcComponent(alternating8, c(0, 0.0)).