Parseval's theorem
In mathematics, Parseval's theorem usually refers to the result that the Fourier transform is unitary; loosely, that the sum of the square of a function is equal to the sum of the square of its transform. Wikipedia
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In mathematics, Parseval's theorem usually refers to the result that the Fourier transform is unitary; loosely, that the sum (or integral) of the square of ...
The identity asserts the equality of the energy of a periodic signal (given as the integral of the squared amplitude of the signal) and the energy of its ...
The meaning of PARSEVAL is a nonrigid airship usually having a car suspended beneath a gas envelope.
Parseval's Theorem states that the total energy computed in the time domain must equal the total energy computed in the frequency domain.
For a full Fourier Series on [−L, L] Parseval's Theorem assumes the form: f(x) = a0. 2. +. ∞. ∑ n=1 an cos. ( nπx. L. ) + bn sin. ( nπx. L. ).