Dictionaries give brief definitions of words, terms and acronyms. See all mathematics dictionaries in the catalogue.
Encyclopedias are useful for acquiring basic background information on a topic and are valuable places to start your research. See all mathematics encyclopedias in the catalogue.
CRC Encyclopedia of Mathematics
by
Eric W. Weisstein
Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables
by
Abramowitz, Milton and Irene A. Stegun (editors)