Dear Roger, thank you, you are very kind
i love factorials and gammas, and no, i get very little of what goes on here with the other f's. beyond the factorials who knows. I also like series and definite integrals; vectors and matrices are interesting. For casual math types, operators and inner products are easier than English grammar terms. i wish there were a symbol for a space, i am forever guessing and worrying about spaces or no spaces. thanks ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
