Spirograph continued

Author:: Malin Christersson

To answer a Tumblr-question: The pattern can be continued. Or made by using some programming language. Change the radii r_i and the angular velocities a_i to see other patterns.

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Periodic Functions
Polar Reciprocation
Shade a spheric triangle with "surface".
aperiodic monotile construction_step by step
Kopie von parabel - parabol

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Trochoïdes
Quadrilateral Tester
Grade 8
Spheres
Borders PBL Q2

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Correlation
Coordinates
Quadratic Functions
Means
Combinatorics