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Ed Pegg Jr
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Demonstrations 301  320 of 401
Tautochrone Problem
Scrap Metal Price of Coins
Sicherman Dice
A 2pire Map
The Troublesome Twelve Circle Problem
Graphs of the Successive Digits of Rational Numbers
Values of Combinatorial Functions
Ramsey(3,3) = 6
Random Chord Paradox
Ramsey(3,3,3)>16
The Pigeonhole Principle  Repunits
The Primes Are Infinite
Precision Error
Fractal Right Triangle
Named Colors
Three Points Determine a Circle
Pinwheel Tiling
Pythagorean Means
Geodesate
Kneser Arrays
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