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Hyperplane
 

Information About

Hyperplane




A hyperplane is a concept in Geometry . It is a generalization of the concept of a Plane .

In a one-dimensional space (such as a line), a hyperplane is a Point ; it divides a line into two Rays . In two-dimensional space (such as the ''xy'' plane), a hyperplane is a Line ; it divides the plane into two Half-plane s. In three-dimensional space, a hyperplane is an ordinary Plane ; it divides the space into two Half-space s. This concept can also be applied to four-dimensional space and beyond, where the dividing object is simply referred to as a hyperplane.


FORMAL DEFINITION

In the general case, a hyperplane is an Affine Subspace of Codimension 1. In other words, a hyperplane is a higher-dimensional analog of a (two-dimensional) plane in three-dimensional space.

An affine hyperplane in ''n''-dimensional space can be described by a non-degenerate Linear Equation of the following form:

a


Here, ''non-degenerate'' means that not all the ''a''''i'' are zero. If ''b''=0, one obtains a linear hyperplane, which goes through the origin of the space.

The two half-spaces defined by a hyperplane in ''n''-dimensional space are:

a


and

a



NOTES


The term realm has been advocated for a three-dimensional hyperplane in four-dimensional space, but this is not in common use.


SEE ALSO