Coordinates

Coordinates

are a set of numbers or values that are used to locate a specific point on a grid or map. The grid or map is divided into rows and columns, and each point is identified by its position in relation to the rows and columns.

A coordinate system is used to specify the position of a point in space, and is typically represented by two or three numbers. The most common coordinate system is the two-dimensional Cartesian coordinate system, which uses an x-axis and a y-axis to identify a point.

In a two-dimensional Cartesian coordinate system, the x-axis is the horizontal axis and the y-axis is the vertical axis. Each point on the grid is identified by an ordered pair of numbers, called coordinates, in the form of (x,y). The x-coordinate tells us how far to the right or left a point is, and the y-coordinate tells us how far up or down a point is.

For example, the point (3,4) is located 3 units to the right and 4 units up from the origin (0,0).

In a three-dimensional coordinate system, a z-axis is added, which tells us how far in or out a point is. The coordinates for a point in a 3D system are represented by a triplet (x,y,z).