Representing continuous probability distributions

Question

I have a problem involving a collection of continuous probability distribution functions, most of which are determined empirically (e.g. departure times, transit times). What I

Answer 1

If you want some fun, try representing them symbolically like Maple or Mathemetica would do. Maple uses directed acyclic graphs, while Matematica uses a list/lisp like appoach (I believe, but it's been a loooong time, since I even thought about this).

Do all your manipulations symbolically, then at the end push through numerical values. (Or just find a way to launch off in a shell and do the computations).

Paul.