Tschirnhausen cubic

名词 n.

英文释义

名词 n.
  1. 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.

词形变化

词源

Named after Ehrenfried Walther von Tschirnhaus (1651–1708), German mathematician, physicist, physician, and philosopher. The name was first used in a 1900 paper by R. C. Archibald.
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