This page is a index to math related articles. There are over a thousand articles. Use the search box to find what you are looking for. The items are listed roughly in order of the project's quality. More substantial ones are on top.

For latest additions, subscribe: Xah Math Blog.

A collection ＆ review of some 50 fun visual math software.

- What is Technical Drawing, Descriptive Geometry, Projective Geometry, Linear Algebra
- Intro to POV-Ray and 3D Geometry Programing
- The Codification of Mathematics

See: Math Notations, Computer Language Notations, and the “Form” in Formalism (≈45 articles)

- The Geometric Significance of Complex Conjugate
- Multiplication and Multiplicative Identity
- Understanding Complex Numbers
- John Baez on Octonion 📺
- The Significance of Complex Numbers: Frobenius Theorem
- 「1+2+3+4+... = -1/12」, Ramanujan's Sum, String Theory, Quantum Mechanics 📺

- the Nature of Associative Property of Algebra
- Euler Angles Can Cause Gimbal Lock, But Not Quaternions
- Bird Flight V Formation as Geometry Problem of Max Visual Contact
- the Nature of Linear Transformation
- What's the Nature of Eigenvector?
- On the Nomenclature of Eigenvector and the Igon Value Problem
- What's Difference Set of a Group

- What is Riemann Surface? Understanding the Concept Without Math
- Klein Bottle Checker Board Paradox
- Learning Notes Of Symmetric Space and Differential Geometry Topics
- Reading Notes on Nicolas Bourbaki
- What is Quadratic Form in Math?
- Space-Filling Curve
- Reading Notes on Tilings and Patterns

- What is Technical Drawing, Descriptive Geometry, Projective Geometry
- Math Art of Hop David
- Paper Folding Basics: Canoe, Sail Boat, Topedo Boat

- Grigori Perelman and Money
- Math Prizes and Nobel Ignobility
- Alexander Grothendieck = Obi-Wan
- Math Politics: Simon Plouffe and nth Digit Formula of π
- Twin Prime Conjecture Breakthru: Yitang Zhang
- Martin Gardner (1914 〜 2010)
- Mathematician Marijke Van Gans Died (1955 〜 2009)
- Russell Towle Died (1949 〜 2008)
- Robby Villegas Died (1968 〜 2010)
- What and Why Mathematics?

- Top Ten Math Books
- More Math Books
- A Survey of Mathematica Books 1997
- Math Books Keeping and Reading

- Xah's Top 10 Math Wonders
- Math Mysticism: is Hurricane Shape a Fibonaci Spiral?
- Math: Fibonaci Sequence Video Fallacy 📺

- English/Chinese Math Terminology 中/英 数学术语
- Stereographic Projection 3D-Printed Physical Model
- Orbits in Juggling's Siteswap Notation
- Tron Light Cycle Optimal Strategy
- Maze ＆ Math in Video Games
- Bejeweled Blitz Strategy as Math
- Geometry: Ellipses, Linkages, Solids of Constant Width 📺
- Plants vs Zombie; Thoughts on Strategy and Game Formulation
- Why Are Scores in Video Games Mega Huge?

- What's a Year? Why Not Just 100 Days?
- What Voting Systems are There?
- Modeling Math Problem Into a Question in Formal Language

- HP-28S Advanced Scientific Calculator
- What's the Latest and Greatest in Calculators?
- 3D Visualization Design

- Math: ID System, Number Base vs Number of Digits
- math simulation ideas
- ants, insects, decentralized systems
- Notes On Plane Curves and Proofs
- Principia Mathematica

- Theory Of Equations
- Review of Khan Academy by Xah Lee
- The Logical Levels of Interpretation
- Math Formula For Beauty
- Dead Reckoning in a Non-Orientable 3D Space
- Math, Algebra: On the Phraseology of X Over K
- Schmidt Arrangement, Algebra Integer, Gaussian Integer, Eisenstein Integer, Modular Group
- Extending the Euclidean Plane: Riemann Sphere and Real Projective Plane