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单词 Locus
释义

locus


Locus (from Latin locus ‘’) is a set of points satisfying a certain condition and such that no point outside the set satisfies this condition.

For example, in the plane the locus of such point that is at a fixed distanceMathworldPlanetmath r from a fixed point O is the circle with centre O and radius r; the locus of such point which is equidistant from both ends of a line segmentMathworldPlanetmath is the perpendicular bisectorMathworldPlanetmath of this line segment.

In general, the loci in the plane are geometric curves; thus one may speak of locus curves.

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更新时间:2025/5/4 20:34:37