Changes

As far as the concept of [[Dimension#Mathematical dimensions|dimension]] is defined, although [[three-dimensional space]] is the most commonly thought of dimensional space, the number of dimensions for a space to exist need not be three: it can also be zero (a point), one (a line), two (a plane), more than three, finite or infinite, and with some definitions, a non-integer value. Mathematicians often study general structures that hold regardless of the number of dimensions.

As far as the concept of [[Dimension#Mathematical dimensions|dimension]] is defined, although [[three-dimensional space]] is the most commonly thought of dimensional space, the number of dimensions for a space to exist need not be three: it can also be zero (a point), one (a line), two (a plane), more than three, finite or infinite, and with some definitions, a non-integer value. Mathematicians often study general structures that hold regardless of the number of dimensions.

===In physics===   

===In physics===