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Ed Pegg Jr.
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Demonstrations 1  20 of 327
RGB Spheres
New this month
Hexagrammum Mysticum
Updated this month
Powered Clique Polyhedra
Minimally Squared Rectangles
Possible Counterexamples to the Minimal Squaring Conjecture
Mrs. Perkins's Quilts
Balanced Ternary Notation
2D CA Glider Database
Factorizing Mersenne Numbers
The Bouniakowsky Conjecture
Regular Tetrahedra Formed by Lattice Points Equidistant from the Origin
Tetrahedron Centers
Mondrian Art Problem
Ponting Square Packing
Canonical Polyhedra
The Klein Configuration
Magic Squares and Designs
Four Points Determine a Sphere
Using Bernoulli's Formula to Sum Powers of the Integers from 1 to n
Maximal Unit Lengths in 3D
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