81 4.7 of the Lnplace Trn~~dorin -Propertics Tlie expressiou in the s q i r m ~brackets ol tlic hrst iiitcfsml corresponds t o the d(vAvciiniioiis ( w e (4.32)) hat is twlirtliiig tlic 5tep: I1 &,(t)C[f - i,) = t(t) fi? = 1, I I? (1.39) ,=I -\IJith the step heights S(b,) from (4.37) I ~Lapi;tc*e P transforrrr of A-(A)is firrally, (1.40) (4.4 1)