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George Beck
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Demonstrations 21  40 of 123
Locus of Points Definition of an Ellipse, Hyperbola, Parabola, and Oval of Cassini
Eulerian Numbers versus Stirling Numbers of the First Kind
Proving Euler's Polyhedral Formula by Deleting Edges
LittlewoodOfford Problem
Generating Permutations by a Sequence of Transpositions
Set Partitions Match Restricted Growth Functions
Adding and Subtracting Positive and Negative Integers
A Negative Times a Negative Is Positive
Do Not Divide by Zero
Motion of Particles in Ocean Waves
The Number of Partitions into Odd Parts Equals the Number of Partitions into Distinct Parts
Rotating Lines around an Axis or a Circle
Total Production of Many Oil Wells
Vertex and Edge Truncations of the Platonic Solids
Overlapping Go Games
The Natural Logarithm is the Limit of the Integrals of Powers
Duals of Platonic Solids
Twisting Rose Surfaces
Olbers's Paradox
Powers in Modular Arithmetic
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