| 单词 | curve or line of striction |
| 释义 | > as lemmascurve or line of striction 2. Geometry. In a skew surface, curve or line of striction: see quots. ΘΚΠ the world > relative properties > number > geometry > curve > [noun] > with regard to distance focal length1682 focal distance1705 power of a point1872 curve or line of striction1875 1875 P. Frost Solid Geom. (ed. 2) I. 297 The curve which is the limit of the polygon formed by joining a, b, c, d,..at which the imagined membranes would have the greatest density, is called the curve of greatest density; it is also called the line of striction. 1889 A. Cayley Coll. Math. Papers I. 234 The curve pqr..is said to be the minimum distance curve (or curve of striction). 1892 A. Cayley Coll. Math. Papers XIII. 233 Supposing the distances PQ1, P1Q2, P2Q3, &c. to be all of them infinitesimal, we have a skew surface containing upon it a curve P1P2P3, &c., which is the line of striction, viz, this is the locus of the point on a generating line which is the nearest point to the consecutive generating line. < as lemmas |
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