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Discrete Mathematics
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Demonstrations 21  40 of 1130
Dissection and Reassembly of Parallelogram of Given Base and Altitude
The Bouniakowsky Conjecture
Tiling a Sphere with Special Right Triangles
Factory for Fractiles of Order Four
Two Equidecomposable Triangles
Convergent Series of Rectangles to Fill a Unit Square
Gerwien's Simultaneous Dissection of Three Triangles of Same Area
SwingandTwist Hinged Dissection of One Regular Heptagon into Eight
Dissection of an Octagram into Five Octagrams
Counting Lattice Paths
Optical Illusion of the Extra Piece
Eulerian Numbers versus Stirling Numbers of the First Kind
Dissection of Two Spherical Triangles to Three Spherical Squares
Doyle Spirals and Möbius Transformations
Tetrahedron Centers
Hinged Dissection of a Regular Heptagon into Eight Smaller Ones
Hinged Dissection of a Hexagram into Seven Smaller Ones
Dissection of a Regular Dodecagon into Six Smaller Ones
Dissection of an Dodecagram into Three Dodecagrams
Mondrian Art Problem
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