Mathematics, the science of structure, order, and relation that has evolved from counting, measuring, and describing the shapes of objects. Mathematics has been an indispensable adjunct to the physical sciences and technology and has assumed a similar role in the life sciences.

Comprehensive encyclopedia of mathematics with 13,000 detailed entries. Continually updated, extensively illustrated, and with interactive examples.

Mathematics publishes high-quality reviews, research papers and communications in all areas of pure and applied mathematics. It covers topics such as algebra, analysis, geometry, topology, logic, probability, statistics, computational mathematics and more.

Learn math from kindergarten to calculus with interactive exercises, videos, and articles. Khan Academy offers free online math courses for learners of all ages and levels, aligned with Common Core standards.

Among the principal branches of mathematics are algebra, analysis, arithmetic, combinatorics, Euclidean and non-Euclidean geometries, game theory, number theory, numerical analysis, optimization, probability, set theory, statistics, topology, and trigonometry.

What is Mathematics? Explained using animations and illustration Video. References: Math is A Language | Ted Talks • Math isn't hard, it's a language | Ra ...

Math explained in easy language, plus puzzles, games, worksheets and an illustrated dictionary. For K-12 kids, teachers and parents.