(a) Optics a point at which a ray changes direction (obsolete); (b) Mathematics a point of a curve at which a change in the direction of curvature…
单词 | θ115675 |
释义 | the world > relative properties > number > geometry > point > [noun] > on a curve > point of inflection (3) point of inflection1670 (a) Optics a point at which a ray changes direction (obsolete); (b) Mathematics a point of a curve at which a change in the direction of curvature… osculum1728 Geometry. A point at which one curve or surface osculates another. Obsolete. rare. flex1866 A point of inflection (see a point of inflection at inflection, n. 3). |
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