Tschirnhausen cubic

短语

词形变化

Tschirnhausen cubics 复数 Tschirnhausen cubics

别名

Tschirnhaus' cubic

释义与例句

n.
  1. 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.

    数学

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.

来源：wiktionary