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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“In the order of literature, as in others, there is no act that is not the coronation of an infinite series of causes and the source of an infinite series of effects.”
—Jorge Luis Borges (1899–1986)