Search Results for ""

For a point y in Y, with f(y)=x, the ramification index of f at y is a positive integer e_y such that there is some open neighborhood U of y so that x has only one preimage ...

In a given triangle DeltaABC with all angles less than 120 degrees (2pi/3, the first Fermat point X or F_1 (sometimes simply called "the Fermat point," Torricelli point, or ...

Geometry is the study of figures in a space of a given number of dimensions and of a given type. The most common types of geometry are plane geometry (dealing with objects ...

The absolute moment of M_n of a probability function P(x) taken about a point a is defined by M_n=int|x-a|^nP(x)dx.

The strophoid of a circle with pole at the center and fixed point on the circumference is a Freeth's nephroid.

Any linear system of point-groups on a curve with only ordinary singularities may be cut by adjoint curves.

A stable fixed point of a map which, in a dissipative dynamical system, is an attractor.

For a parabola oriented vertically and opening upwards, the vertex is the point where the curve reaches a minimum.

The lines of a pencil joining the points of a line segment range to another point.

A point at which three or more polyhedron edges of a polyhedron meet. The concept can also be generalized to a polytope.