NIST recently released a 5-chapter preview of the DLMF online "tables" project (an online successor to the Abramowitz & Stegun book of tables). The chapters available include the Gamma Function and Number Theory. http://dlmf.nist.gov I was looking it over, and came away strangely dissatisfied. I was trying to put my finger on why, but I can't really explain it. The website doesn't have the same thrill as flipping through the book. The typesetting is reasonable. I can't fault dropping out the numeric tables, and replacing them with pointers to the original paper book, along with augmented references. They've added a section on software for computing the functions, with pointers to ACM algorithms[$$]. I might wish for a more thorough introduction to the subject of the Gamma Function, but the original A&S book certainly didn't do more than scratch the surface. And the introductory material could well get in the way of looking up some fine detail. What's wrong with this picture? Rich