Essentially, the attached examples are applied wrt parametric Laplace F(s) Parameters are wild and only specified ahead of invoked invLaplace(F(s),t). Thus, algo is reusable from the function definition collapsed. [a, ns, nd] are external. All attached are mutual companions. 1. One example must be NOT tinit 0 2. Gfails on range 0 .. 15 but succeeds 0 .. 20. All in all: works fine. Rather for classroom, but useful for applications, as exemplified [PID modeling, TurboGen].