Questions tagged [parsevals-identity]

This tag is for questions regarding Parseval's Identity, an important result in the study of Fourier Series.

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What is the correct formula for Parseval's identity?

Looking for a quick validation here: We have a periodic function $f(t)$ with a period of $T$ that satisfies Dirichlet's conditions. Which of the following 2 formulas is correct ? My book (not professor's): $$\int_{-T/2}^{T/2}f(t)^2dt =…
NickDelta
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