s = var("s")
t = var("t")
k = var("k")
f = exp((-s)*t)*(k)    #since laplace transform is an integral from 0 to infinity our and our function # is zero for t < 1 and t > 4
F = f.integrate(t, 1, 4)
show(F)

SageDays/Kreyszig-5.1-10 (last edited 2010-08-11 13:38:27 by saurabhagrawal)