| 单词 | equiangular spiral |
| 释义 | > as lemmasequiangular spiral b. Having angles respectively equal with those of another figure, or making equal angles with a line. equiangular spiral (see quot. 1884). ΚΠ 1786 Philos. Trans. (Royal Soc.) 76 21 The method employed to make the threads of the screw equiangular with the axis. 1840 D. Lardner Treat. Geom. 119 Mutually equiangular, and..therefore similar. 1884 B. Williamson Elem. Treat. Differential Calculus (ed. 5) xii. 223 In the logarithmic spiral..the angle between the radius vector and the tangent is constant. On account of this property the curve is also called the equiangular spiral. equiangular spiral spiral of Archimedes, a curve traced by a point moving uniformly along a line which at the same time revolves uniformly round a fixed point in itself. equiangular spiral, hyperbolic spiral, logarithmic spiral, loxodromic spiral, parabolic spiral: see these words.extracted from spiraln.< as lemmas |
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