Assenstelsels
Assenstelsels, also known as coordinate systems, are frameworks used to define the position of points in space. The most common type is the Cartesian coordinate system, developed by René Descartes. In a two-dimensional Cartesian system, a point is identified by two numbers, called coordinates, representing its horizontal and vertical distance from a fixed origin point. These distances are measured along two perpendicular lines called axes, typically labeled x and y. In a three-dimensional Cartesian system, a third axis, usually labeled z, is added, and points are defined by three coordinates.
Other types of assenstelsels exist. Polar coordinates, for instance, define a point's position by its distance