Mathematical Links

MATHEMATICS

Mathematics: Numbers


Prime Number Spiral
Pulchritudinous Primes
The Prime Pages
Why do people find these big primes?
Dozens online
Cadaeic: Constrained writing Mike Keith
The Most Irrational Number (golden ratio)
Mathematics in Art and Architecture
13 surprising Fibonacci appearances
The Philosophy of Applied Mathematics
Travels in a Mathematical World blog (Peter Rowlett)
The Pi Manifesto
A History of Measures
Short lectures on the History of Mathematics
Solypsis Colin Wright

Mathematics: Formal


Math World
Matrix Algebra
Visual Calculus
q-calculus
Time Scale Calculus
The Point of Pure maths.

Mathematics: Miscellaneous


Walking Randomly about maths software, calculators etc.
Mathematical Garden
Mathematics Blogs
Holditch Theorem
Pecha Kucha
Coloquial Mathematics
Partitions
Axiom of choice
Ayer on Frege and Russell
Zeros in base ten representation of 2^n
Theorems
Blog
Continued fraction for pi
Republic of Math
Random Walk on a Sphere
Document
Pendulum waves
Spherical trig
Models of quantum mechanics
Sky Survey
Mathematics exploration
GPB Results
Axiom of choice
Fermst's proof?
Solvay conference 1927
Bell numbers rhyme schemes
Wolfram Alpha
Quantum theory and knots by Witten
Cloud Computing
Polymaths project
Cantor's proof
Math jokes
Binomial coefficients
The Quark Song
Four pegs
fusc
Ramanujan
Many solutions
Picking holes
Math Type
Mathematics portal
BL Newspaper archive
Sawayama proof
Magic Tile
Pi Notes
Hilbert's Fifth
Infinity
Catalan's theorem
Probability question
Rational trigonometry!
Stack exchange
Math overflow
Pythagorean triples
Conway's polynomial
Japanese set
a=b=c = abc
Harmonic mean
Software
Four travellers Ceva and Menelaus]
Digitised maths books
History of mathematics by topics
Roots Visualisation
Lecture about Euler
Axioms of Logic and mathematics
Plus Magazine
Gathering for Gardner
Mathematics 24x7
Fibonacci Flimflam Donald E. Simanek
Net Wiki network theory
Online Encyclopedia of Integer Sequences
JdR's World
Cut The Knot Maths
Alex Bellos blog

On-screen Games


Thinking Machine 4 chess
Draw your own kaleidoscope
Games Co UK Free Online Games
Planarity

Geometry


Hexapent Oddities Pentagonal Tiling Patterns
Heptomino Subset Problem (Michael Keller)
Silver Ratio
Tiling with pentagons
Nine-point circle
Pyramidlology
Topology
Point and Line
Folium of Descartes
Finite geometry
Isosceles triangle
Icosahedron
Geodesic domes
Geometry helps algebra
7D Simplex
Heronian triangle
Heron's formula
Polyhedra graphics
Strangest shapes
Sphere and cylinder
Origami proof of pythagoras
Squaring the Square S. E. Anderson
Squared square
Cinderella Interactive Geometry Software
The Geometry Junkyard David Eppstein
The Geometry Junkyard: Topics
The Poly Pages polyominoes etc

Magic Arrays


Order 5 Panmagic Squares
Harvey Heinz
Magic Encyclopedia Aale de Winkel
Magic Squares Francis Gaspalou
Knight's Tour Magic Square

Puzzles


Math Puzzle
Puzzles Archive
Puzzles of Leonid Mochalov
Puzzles for Gathering for Gardner 4
Gathering for Gardner 9
Sam Loyd's Puzzles
Amusements in mathematics by H. E. Dudeney (without diagrams)
Selected Papers on Fun and Games D. E. Knuth
Adrian Fisher Design mazes
Renegade Puzzlers forum
Marc Cohen, Puzzles
Puzzle Zapper: Hamiltonian snakes
Puzzle Laboratory Shop