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1 La trasformata di Laplace

1 La trasformata di Laplace

1 La trasformata di Laplace

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Si ottieneL[f](s) ==∫1 π1 − e −2πs11 − e −πs 1s 2 + 1 .0e −st sin(t)dt =11 − e −2πs 1 + e −πss 2 + 1 =Nel calcolo abbiamo sfruttato il risultato precedente relativo a L[sin + (t)+sin + (t − π)](s).4. Consideriamo il segnale π-perio<strong>di</strong>co denito da f(t) = |sin(t)| + .Per esso si trovaL[|sin| + ](s) =∫1 π1 − e −πs012e −st sin(t)dt =11 − e −πs 1 + e −πss 2 + 1 .

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