Before revision: A representation of a three-dimensional Cartesian coordinate system with the x-axis pointing towards the observer In geometry, a three-dimensional space (3D space, 3-space or, rarely, tri-dimensional space) is a mathematical space in which three values (coordinates) are required to determine the position of a point.
After revision: ooh SnapA representation of a three-dimensional Cartesian coordinate system with the x-axis pointing towards the observer In geometry, a three-dimensional space (3D space, 3-space or, rarely, tri-dimensional space) is a mathematical space in which three values (coordinates) are required to determine the position of a point.