Equation Description: Discrete-Time Fourier transform - Parseval's Theorem |
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LaTeX Code:
\sum\limits_{n = - \infty }^\infty {\left| {x(n)} \right|^2 } = \frac{1}{{2\pi }}\int\limits_{ - \pi }^\pi {\left| {X(e^{j\omega } )} \right|^2 d\omega }
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