英语词汇“pedal origin”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

pedal origin

† pedal origin n. Geometry Obsolete the fixed point from which perpendiculars are drawn to the tangents to a curve or surface, the locus of their intersections being the pedal of the curve or surface; the origin or pole of a pedal.

ΚΠ

1862 Proc. Royal Soc. 12 247 The term ‘pedal surface’..indicates, simply, the locus of the feet of perpendiculars let fall from a fixed point, the pedal origin.

1887 Ann. Math. 3 123 It may be shown..that the curve is the pedal of the evolute of the ellipse, the centre being the pedal origin.

extracted from pedaladj.

as lemmas

单词	pedal origin
释义	> as lemmas pedal origin † pedal origin n. Geometry Obsolete the fixed point from which perpendiculars are drawn to the tangents to a curve or surface, the locus of their intersections being the pedal of the curve or surface; the origin or pole of a pedal. ΚΠ 1862 Proc. Royal Soc. 12 247 The term ‘pedal surface’..indicates, simply, the locus of the feet of perpendiculars let fall from a fixed point, the pedal origin. 1887 Ann. Math. 3 123 It may be shown..that the curve is the pedal of the evolute of the ellipse, the centre being the pedal origin. extracted from pedaladj. < as lemmas
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