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Ed Pegg, Jr.
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Demonstrations 121  140 of 401
Four Points Determine a Sphere
Using Bernoulli's Formula to Sum Powers of the Integers from 1 to n
Maximal Unit Lengths in 3D
Bitwise XOR Game
Golomb Rulers and Fibonacci Sequences
Schlegel Diagrams
Wheels of Powered Triangles
Sudoku Logic
Rational Distance Problem
Rectangles Reasonably Close to a Given Area
Triangle Radicals
Sporadic Groups
Consecutive Smooth Numbers
Pell Equation
Pandiagonal Magic Squares of Order Five
Arbitrary Curves of Constant Width
Thomson Problem Solutions
Halving a Triangle
Blood Spatter Trigonometry
Concurrent Diagonals in a 30Gon
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