Links to a wide range of sites providing matematical information.

• Access Science - McGraw-Hill Encyclopedia of Science & Technology. A collection of science reference materials, online and fully searchable. ACCESS Science provides access to all the articles, fully illustrated, from the latest edition of the McGraw-Hill Encyclopedia of Science & Technology, Research Updates from the McGraw-Hill Yearbooks, thousands of illustrations, and the latest Science News headlines, biographies, and more. This online encyclopaedia is tailored to researchers and students looking for the most relevant, readable, and trusted sources of information available.
  - available for use on Ryde Library Services PC's. Also available for access at home by members of Ryde Library Services, by use of the Ryde Library membership card number.
• A Dictionary of Measures, Units and Conversions - provides summaries of units of measurement used worldwide, a table of conversion factors, definitions of international standard units.
• How many? A dictionary of Units of Measurement - a comprehensive A-Z dictionary of the International System of Units
• The MacTutor History of Mathematics Archive
• Science Resource Center - an in-depth, curriculum-oriented science database that provides a one-stop resource for all science-related research needs.
  - available for use on Ryde Library Services PC's. Also available for access at home by members of Ryde Library Services, by use of the Ryde Library membership card number. 
• Universal Currency Converter - an interactive foreign exchange rate calculator using up-to-date currency rates.