Plotting numerical Laplace inverse transforms
- To: mathgroup at yoda.physics.unc.edu
- Subject: Plotting numerical Laplace inverse transforms
- From: mass at hobiecat.pcmp.caltech.edu (Mass Sivilotti)
- Date: Fri, 24 Apr 1992 08:19:01 GMT
I need to plot the impulse response of a strange filter:
H(s) = 1/(s * Cosh[Sqrt[s]])
I tried to brute-force it through MMA 2.0 (on a NeXT):
Plot[InverseLaplaceTransform[1/(s Cosh[Sqrt[s]]), s, t], {t, 0, 3}]
but this blew MMA's little mind. Any suggestions would be appreciated,
including a more efficient approach to the problem (I believe MMA is
doing two numerical integrations for every data point...).
Thanks in advance,
--mass
(mass at hobiecat.pcmp.caltech.edu)