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Recreational Mathematics
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Demonstrations 621  640 of 1038
The Cake Icing Puzzle
Epicycloids from an Envelope of Lines
Spirals in Squares
MagicLike Squares (German)
Three Touching Circles on a Line
MagicLike Squares
A Necklace of Equilaterals
Problems on Circles XIV: Bisecting the Circumference of Three Circles with a Circle
A Rotating Hinged Parallelogram
A Chain of Tangent Circles
A Layered Design
Trajectories of the Logistic Map
Helix Staircase Plotter
Cyclic Patterns
Helical Staircases
Busy Beaver
Boltyanski's Cake Problem
Random Spheres
The Hopping Frog Word Problem for Rate, d = r t
The Secret of Nim
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