Cut the Knot offers interactive mathematics puzzles and educational material.
Wolfram MathWorld
Wolfram MathWorld contains more than 13,000 illustrated mathematics entries with interactive examples.
About Wolfram MathWorld
Wolfram MathWorld is a web-based mathematics encyclopedia with more than 13,000 illustrated entries that include interactive examples. It covers subjects including algebra, geometry, calculus and analysis, probability and statistics, discrete mathematics, number theory, topology, applied mathematics, foundations of mathematics, recreational mathematics, and history and terminology.
The site was created and developed by Eric Weisstein with contributions from the mathematical community. It also links to an online integral calculator and an online derivative calculator.
Key features
- More than 13,000 illustrated mathematics entries
- Interactive examples within entries
- Subject coverage across algebra, geometry, and calculus
- Entries for statistics, discrete mathematics, and number theory
- Links to an online integral calculator
- Links to an online derivative calculator
Best for: People seeking reference information on mathematics topics across many subject areas.
Good for
- More than 13,000 detailed entries
- Illustrated entries with interactive examples
- Coverage of multiple mathematics subject areas
Wolfram MathWorld at a glance
- Website
- mathworld.wolfram.com
- Category
- Education & Learning › Mathematics Learning
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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