The term 'sets of mathematical points' can be summarized as LOCI, which is a four-letter word. LOCI are used in mathematics to refer to the set of all points that satisfy a given condition or set of conditions. They are often used to describe the location of points on a graph or in a plane. In geometry, LOCI are used to define shapes and figures, such as circles, ellipses, and polygons. In algebra, LOCI are used to describe equations and their solutions.