is the position of an object in a relative to the corresponding axis. Coordinates are often seen together with other coordinates, which can describe the position of an object in a coordinate system with one, two, three, or even more dimensions.
In One Dimension
In a coordinate system, which is the same as a , only one is used to indicate the position of a point on that line.
In Two Dimensions
In a coordinate system, are usually expressed as a coordinate pair
— also called an ordered pair
— denoted by (x,y).
The first coordinate states the position along the x-
axis, and the second coordinate states the position along the y-
In Three Dimensions
In a coordinate system, three are needed to express a coordinate position. It is referred to as an ordered triple
denoted by (x,y,z).
Each number states the position of the point relative to its corresponding axes.
More Than Three Dimensions
Although a coordinate system with more than three coordinates cannot be represented graphically, it is possible to work with its points by using their coordinates. In such cases, the points will have as many coordinates as the system has. In an n-dimensional system, the points are called ordered tuples, or n-tuples, and they are denoted as