CRC Concise Encyclopedia of Mathematics is a book by American author Eric W. Weisstein.

During the dispute, a court order shut down MathWorld for over a year starting October 23, 2000.

According to Eric Weisstein's personal site, he restarted MathWorld on November 6, 2001.

Among these benefits are the legal rights to reproduce MathWorld in book format again.

[citation needed] The book has consistently received good reviews.