英语词汇“central curve”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

> as lemmas

central curve

central curve n. Mathematics (now rare) a curve that has a single centre of symmetry; (in early use esp.) a central conic.

ΚΠ

1823 D. Lardner Syst. Algebraic Geom. I. viii. 51 The point y″x″ is called the centre, and the ellipse and hyperbola are thence called by the common name of central curves.

1910 Jrnl. & Proc. Asiatic Soc. Bengal 1908 4 242 For central curves of the second order, the point where the line joining P to the origin meets the polar chord of P is the middle point of that chord.

1947 Jrnl. Tennessee Acad. Sci. 22 134 For ordinary inversion C is a central curve, usually a conic, and O is its center.

extracted from centraladj.

as lemmas

单词	central curve
释义	> as lemmas central curve central curve n. Mathematics (now rare) a curve that has a single centre of symmetry; (in early use esp.) a central conic. ΚΠ 1823 D. Lardner Syst. Algebraic Geom. I. viii. 51 The point y″x″ is called the centre, and the ellipse and hyperbola are thence called by the common name of central curves. 1910 Jrnl. & Proc. Asiatic Soc. Bengal 1908 4 242 For central curves of the second order, the point where the line joining P to the origin meets the polar chord of P is the middle point of that chord. 1947 Jrnl. Tennessee Acad. Sci. 22 134 For ordinary inversion C is a central curve, usually a conic, and O is its center. extracted from centraladj. < as lemmas
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