Quadrifolium

The quadrifolium (also known as four-leaved clover) is a type of rose curve with n=2. It has the polar equation:

with corresponding algebraic equation

Rotated by 45°, this becomes

with corresponding algebraic equation

In either form, it is a plane algebraic curve of genus zero.

单词	Quadrifolium
释义	Quadrifolium 英语百科 Quadrifolium The quadrifolium (also known as four-leaved clover) is a type of rose curve with n=2. It has the polar equation: with corresponding algebraic equation Rotated by 45°, this becomes with corresponding algebraic equation In either form, it is a plane algebraic curve of genus zero.
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