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单词 unit circle
释义

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unit circle
unit circle n. Mathematics a circle having a radius of one unit.
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1852 Cambr. & Dublin Math. Jrnl. 7 134 The imaginary unit in the solution of (II.) has the same reference to an unit circle, as that in the solution of (III.) has to an unit sphere.
1920 Amer. Mineralogist 5 71 Draw the unit circle and horizontal and vertical diameters, dividing the circle into quadrants.
2014 Tampa Bay (Florida) Times (Nexis) 20 Mar. (TBTwo section) 6 This year, Ladd sported a watch with the unit circle on it in terms of pi rather than actual numbers.
extracted from unitn.adj.
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更新时间:2024/11/13 13:11:58