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Spirograph
Author:
alfinio
Inner gear with B teeth rolls inside outer gear with Q teeth.
GeoGebra
New Resources
Stairs (Optical Illusion)
Isosceles Triangle: Quick Construction
van Aubel's Theorem
"Compressed" Astroid as Envelope
Cross Product in 2D and 3D
Discover Resources
Combination of sine/cosine waves: beats
Partial Derivative
Exploring Triangles: Part 1
Graphing a Horizontal Line
Trans 4
Discover Topics
Combinatorics
Trigonometric Functions
Geometric Transformations
Constructions
Rational Numbers