Limaçon
In mathematics, limaçons, also known as limaçons of Pascal (pronounced with a soft c), are heart-shaped mathematical curves. The cardioid is a special case, with a cusp. They arise in polar coordinates in the form
and
The term derives from the Latin word limax which means "snail".
History Formal research on limaçons is attributed to Étienne Pascal, father of Blaise Pascal. However investigations began earlier by the German Renaissance artist, Albrecht Dürer. Dürer's Underweysung der Messung (Instruction in Measurement) [1], contains specific geometric methods for producing limaçons.
Visualizations
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