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Recreational Mathematics
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Demonstrations 21  40 of 1021
Saturday Morning Breakfast Cereal Fourier Transform
Freese's Dissection of a Hexagram into Three Congruent Hexagrams
Freese's Dissection of a Dodecagram into a Hexagram
An IMO Triangle Problem
Cumulation
Lewis Carroll's Diagrams
Freese's Dissection of a Regular Octagon to Eight Congruent Regular Octagons
RepTiles
An Unfoldable Polyhedron
Cunningham's Simply Connected Kakeya Set
Tiling Polyominoes Game
Rolling a Regular Polygon on the Unit Circle
Dissection of a Regular Enneagon into Four Congruent Regular Enneagons
Bitwise XOR Game
Dissecting a Regular Hexagon into Five Congruent Regular Hexagons
Varsady's Dissection of a Regular Pentagon into Six Congruent Regular Pentagons
Dissection of an Equilateral Triangle into Five Equilateral Triangles
Frederickson's Dissection of a Regular Dodecagon into Two Congruent Regular Dodecagons
Theobald's Dissection of One Regular Octagon into Two
The 196 Algorithm, ReorderandAdd Algorithm, and RATS Sequence in Different Bases
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