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Recreational Mathematics
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Demonstrations 1  20 of 1204
Primes in the Heegner Fields
New this month
Eisenstein Triples
Baseball Card Collecting
Magic Zero Hexagons
Mondrian Art Problem
Generating the Surreal Numbers
Egyptian Multiplication
Penrose Rhombus Tilings by Projecting Golden Rhombi 2
Path of an Ant on the Diameter of a Rolling Circle
Rauzy Fractals as Stepped Surfaces
Bad Fraction Simplification
Path of an Ant on the Diameter of a Circle Rotating on the Unit Circle
Dice Transitivity
Substitution Tilings
A Grill for Secret Writing
Dissecting One Isonona Triangle into Two
Isonona Triangles
All 11 Folding Nets of the Regular Octahedron
How Many Socks Do Two Feet Wear Out?
Tri: A Variant of Hex Played on a Sphere
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