A locus is the set of all points (usually forming a curve or surface) satisfying some condition. For example, the locus of points in the plane equidistant from a given point is a circle, and the set of points in three-space equidistant from a given point is a sphere.
Locus
See also
Circle, Conic Section, Ellipse, Hyperbola, Parabola Explore this topic in the MathWorld classroomExplore with Wolfram|Alpha
References
Casey, J. A Sequel to the First Six Books of the Elements of Euclid, Containing an Easy Introduction to Modern Geometry with Numerous Examples, 5th ed., rev. enl. Dublin: Hodges, Figgis, & Co., pp. 5-6, 1888.Referenced on Wolfram|Alpha
LocusCite this as:
Weisstein, Eric W. "Locus." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Locus.html