Digital Library of Mathematical Functions produced by NIST (the National Institute of Standards and Technology)

Over ten years in the making, this carefully constructed digital reference tool is available for free!  See:

The NIST Handbook of Mathematical Functions is considered a companion volume.  We will get a copy for the Engineering & Science Library soon.

Don’t miss the YouTube video of the making of the Digital Library:

Do you like the format of the new book blog entries?