If I have $ z(t) = x( t - \frac{ T_0 }{4 } ) $ with $ x(t) = rect ( \frac{ t - \frac{T_0}{4} } { \frac{T_0}{2} } $ I obtained that , For parseval theorem , $ Px= Pz = \frac{1}{4} sinc ^{2}( \frac{k}{2} ) $ but the result on my book is 1/2
2026-03-27 04:56:38.1774587398
Parseval theorem on a signal
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