A visual interpretation of Riemann zeta zeros via the Fourier transform

Mathematica 8:

scale = 1000000;
xres = .001;
limit = 3000;
x = Exp[Range[0, Log[scale], xres]];
a = FourierDCT[(SawtoothWave[x])*x^(-1/2)];
b = -FourierDST[(SawtoothWave[x] – 1)*x^(-1/2)];
(*ListLinePlot[((SawtoothWave[x])*x^(-1/2))[[1;;limit]]]*)
gs = ListLinePlot[-((SawtoothWave[x] – 1)*x^(-1/2))[[1 ;; limit]],
PlotStyle -> RGBColor[1, 0, 1]];
gsine = ListLinePlot[
Table[Sin[Im[ZetaZero[1]] x], {x, 0, limit*xres, xres}]];
Show[gs, gsine, PlotRange -> {-1, 1}]
ListLinePlot[
Table[Sin[
Im[ZetaZero[1]] x]*(-((SawtoothWave[x] – 1)*x^(-1/2))), {x,
0.00001, limit*xres, xres}]]

Frequency interpretation of Riemann zeta zero via the Fourier transform:

Frequency interpretation of Riemann zeta zeros

The two curves multiplied:

Frequency interpretation of Riemann zeta zeros - the two functions multiplied

I believe the sum of the latter should be zero in order for the
frequency of the sine curve to be equal to a Riemann zeta zero.

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