"For years, Eric Weisstein's Treasure Trove Web site, more
recently named MathWorld, was a valuable resource on the Web. It
contained, among other things, information and code on a wide
variety of computer algorithms...."
"Eric Weisstein, the creator of Eric's Treasure Trove,
turned the content of the site into a book, The CRC Concise
Encyclopedia of Mathematics, published by CRC Press. In the
process, CRC Press acquired the copyright ownership of that
material--but the extent of what they acquired is the central issue
of the dispute."
"For a while, Eric's Web site remained available. Then, at the
request of CRC Press, access to the algorithms was limited to items
starting with ten letters of the alphabet at a time, but the
selection of which ten would be changed each day. Later the limit
was removed, though now the site has been shut down