GeoGebra

Astroid

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Astroid is a particular type of curve: a hypocycloid with four cusps. Astroids are also superellipses: all astroids are scaled versions of the curve specified by the equation

x^(2/3)+y^(2/3)=1

Mechanical construction of the astroid curve. A didactic example.

Astroid: Htm.gif astroid.html

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