In geometry, a disk is the region in a plane contained inside of a circle. Geometry (Greek γεωμετÏία; geo = earth, metria = measure) arose as the field of knowledge dealing with spatial relationships. ... This article is in need of attention from an expert on the subject. ... In Euclidean geometry, a circle is the set of all points at a fixed distance, called the radius, from a fixed point, called the centre (center). ...
A disk is said to be closed or open according to whether it contains or not the circle which is its boundary.
A ball is a disk in a space with more than two dimensions. See ball (mathematics). Sometimes however, one uses the word "disk" synonymously with "ball", allowing it to have other dimensions. The solid interior of a sphere or circle; in mathematics, latter terms refer specifically to the (n-1)-dimensional surface of an n-dimensional solid ball. ... Look up Synonym on Wiktionary, the free dictionary Synonyms (in ancient Greek syn συν = plus and onoma όνομα = name) are different words with similar or identical meanings and are interchangable. ...
Feeds |
Contact