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Not continuous. A point at which a function is discontinuous is called a discontinuity, or sometimes a jump.
The head of a vector AB^-> is the endpoint B, i.e., the point at which the arrow is placed.
A fixed point for which the stability matrix has equal nonzero eigenvectors.
A point at which two polygon edges of a polygon meet.
The vertex of a polytope is a point where edges of the polytope meet.
Relates evolutes to single paths in the calculus of variations. Proved in the general case by Darboux and Zermelo in 1894 and Kneser in 1898. It states: "When a single ...
An n-cycle is a finite sequence of points Y_0, ..., Y_(n-1) such that, under a map G, Y_1 = G(Y_0) (1) Y_2 = G(Y_1) (2) Y_(n-1) = G(Y_(n-2)) (3) Y_0 = G(Y_(n-1)). (4) In ...
Pick any point P on a conic section, and draw a series of right angles having this point as their vertices. Then the line segments connecting the rays of the right angles ...
The free product G*H of groups G and H is the set of elements of the form g_1h_1g_2h_2...g_rh_r, where g_i in G and h_i in H, with g_1 and h_r possibly equal to e, the ...
A figurate number in which layers of polygons are drawn centered about a point instead of with the point at a polygon vertex.
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