Wolfram MathWorld
This free service from the makers of Mathematica provides a comprehensive collection of mathematics resources.
Features include:
- The MathWorld Classroom, which provides a set of pop-up ‘capsule summaries’ for more than 300 mathematical terms.
- Extensive citations to books and journal articles, many of which are active hyperlinks.
- Thousands of downloadable Mathematica notebooks.
- Several types of interactive entries, including LiveGraphics3D applets for interactive three-dimensional geometry.
- A powerful full-text search engine with both basic and advanced searching capabilities.
- Dublin Core and Mathematics Subject Classification metadata in the HTML headers of each page.
- Special information for Mathematica users.



