Sinusoidal spiral

In geometry, the sinusoidal spirals are a family of curves defined by the equation in polar coordinates

where a is a nonzero constant and n is a rational number other than 0. With a rotation about the origin, this can also be written

The term "spiral" is a misnomer, because they are not actually spirals, and often have a flower-like shape. Many well known curves are sinusoidal spirals including:

单词	Sinusoidal spiral
释义	Sinusoidal spiral 英语百科 Sinusoidal spiral In geometry, the sinusoidal spirals are a family of curves defined by the equation in polar coordinates where a is a nonzero constant and n is a rational number other than 0. With a rotation about the origin, this can also be written The term "spiral" is a misnomer, because they are not actually spirals, and often have a flower-like shape. Many well known curves are sinusoidal spirals including:
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