A call number is like a book's address; it tells you where to find a book in the library's collection. Call numbers are arranged alphabetically, and then by whole number (everything before the first period in the call number).
The following call number ranges are where you'll find most of our books on Mathematics. The Library of Congress Classification Outline provides a full guide to call numbers.
Subclass QA - Mathematics
Subclass QA 101-(145) - Elementary mathematics. Arithmetic
Subclass QA 150-272.5 - Algebra
Subclass QA 273-280 - Probabilities. Mathematical statistics
Subclass QA 299.6-433 - Analysis
Sublcass QA 440-699 - Geometry. Trigonometry. Topology.
Subclass QA 801-939 - Analytic mechanics
Dictionaries, encyclopedias, etc. from a variety of sources.
Reference books by Oxford University Press, including the Oxford Digital Reference Shelf.
Online reference works from a variety of publishers.