A special Point which usually has some symmetric placement with respect to points on a curve or in a Solid.
The center of a Circle is equidistant from all points on the Circle and is the intersection of any two
distinct Diameters. The same holds true for the center of a Sphere.

*See also *Center (Group), Center of Mass, Circumcenter, Curvature Center, Ellipse,
Equi-Brocard Center, Excenter, Homothetic Center, Incenter, Inversion Center,
Isogonic Centers, Major Triangle Center, Nine-Point Center, Orthocenter, Perspective
Center, Point, Radical Center, Similitude Center, Sphere, Spieker Center, Taylor
Center, Triangle Center, Triangle Center Function, Yff Center of Congruence

© 1996-9 *Eric W. Weisstein *

1999-05-26