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George Beck
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Demonstrations 81  100 of 145
Projecting Points on Spheres to Lower Dimensions
Integrating Odd Powers of Sine and Cosine by Substitution
The Area of a Triangle Using a Determinant
Multiset Partitions
Convexification
Completing the Square
A Continuous Mapping That Fixes All Boundary Points but No Interior Points
Square Spiral for a Given Number of Divisors
Skewed Cone
3×3 Determinants by Expansion
3×3 Determinants Using Diagonals
Dual Billiards
Zonogons: Minkowski Sums of Line Segments in 2D
Reflecting a Lattice of Points
Dust with Line Shadows in Every Direction
Ellipse and Friends
Euler's Generating Function for the Partition Numbers
Normalizing Vectors
Any Quadrilateral Can Tile
Cesāro Sums of Some Unit Sequences
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