Lemniscate definition

Lemniscate

Topics Lemniscate Definition

WiktionaryText

Noun

The symbol for infinity, which resembles the figure 8 on its side.
Any closed curve (similar to a figure eight) described by a Cartesian equation of the form $(x^2 + y^2)^2 = a^2 (x^2 - y^2)\,$

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