| 单词 | flexure of a curve |
| 释义 | > as lemmasflexure of a curve 6. Mathematics. The bending or curving of a line or surface. In the theory of elasticity, the bending of a surface or solid. flexure of a curve: its bending towards or from a straight line. point of contrary flexure: see contrary adj. 5d. ΘΚΠ the world > relative properties > number > geometry > curve > [noun] > curvature crookedness1651 flexure1672 flexion1704 curvature1710 1672 J. Wallis Let. in S. P. Rigaud & S. J. Rigaud Corr. Sci. Men 17th Cent. (1841) (modernized text) II. 538 The figure of tangents applied to the arch stretched out into a straight line, hath no contrary flexure. 1831 D. Brewster Treat. Optics vi. 64 All the variety of caustics, with their cusps and points of contrary flexure. 1856 E. B. Denison Lect. Church Building iii. 93 Hogarth's line of beauty..is..in mathematical language, a curve of contrary flexure. 1857 W. Whewell Hist. Inductive Sci. (ed. 3) I. 79 This flexure is different at different angles. 1879 W. Thomson & P. G. Tait Treat. Nat. Philos. (new ed.) I: Pt. i. §141 Flexure stretches one side and condenses the other temporarily. < as lemmas |
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