最終更新日:2024/08/08
(geometry) A plane curve defined, in its left-opening form, by the polar equation r=a sec ³(𝜃/3) where sec is the secant function.
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Tschirnhausen cubic
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(geometry) A plane curve defined, in its left-opening form, by the polar equation r=a sec ³(𝜃/3) where sec is the secant function.
Tschirnhausen cubic