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Demonstrations 21 - 40 of 149
Some Special Types of Matrices
Rule of Sum and the Inclusion-Exclusion Principle
Directed Angles and Their Types
The Four Quadrants
Duals of Platonic Solids
Vertex and Edge Truncations of the Platonic Solids
Multiplying a Matrix by a Number
Matrix Addition and Subtraction
Plot a Quadratic Inequality
Insphere and Four Exspheres of a Tetrahedron
Permutations, k-Permutations and Combinations
Cone, Tent, and Cylinder
Chains of Regular Polygons and Polyhedra
Rotational Symmetries of Platonic Solids
Duals by Rotating the Edges of Polyhedra
Combining Two 3D Rotations
Passing a Cube through a Cube of the Same Size
0/1-Polytopes in 3D
The Path of a Ray on a Cube
Applications of Lanchester's Square Law
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