Function: intlaplaceinv
Section: sums
C-Name: intlaplaceinv0
Prototype: V=GGEDGp
Help: intlaplaceinv(X=sig,x,s,{tab}): numerical integration on the line
 real(z) = sig of s(z)exp(xz)dz/(2*I*Pi), i.e. inverse Laplace transform of s
 at x. tab is as in intnum.

