Fourier Series
It is clear that ΔT(t) is periodic with period T. That is
for all t. The complex Fourier series for such a periodic function is
where the Fourier coefficients, cn are
All Fourier coefficients are 1/T resulting in
Read more about this topic: Dirac Comb
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“Galileo, with an operaglass, discovered a more splendid series of celestial phenomena than anyone since.”
—Ralph Waldo Emerson (1803–1882)