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Limaçon of Pascal

Description

A limaçon is a bicircular rational plane algebraic curve of degree 4. Limaçon of Pascal, is defined as a roulette formed when a circle rolls around the outside of a circle of equal radius. It can also be defined as the roulette formed when a circle rolls around a circle with half its radius so that the smaller circle is inside the larger circle. The Limaçon equation in Cartesian coordinates has a form, using the radii of both circles.

Related formulas

Variables

xX-coordinate (m)
yY-Coordinate (m)
aRadius of the main circle (m)
bRadius of the rolling circle (m)