Browse Definitions :
Definition

Cartesian coordinates (rectangular coordinates)

Cartesian coordinates, also called rectangular coordinates, provide a method of rendering graphs and indicating the positions of points on a two-dimensional (2D) surface or in three-dimensional (3D) space. The scheme gets its name from one of the first people known to have used it, the French mathematician and philosopher René Descartes (1596-1650). Cartesian coordinates are used to define positions on computer displays, in 3D models and virtual reality (VR) renderings. The coordinate system is also employed in mathematics, physics, engineering, navigation, robotics, economics and other sciences.

The Cartesian plane consists of two perpendicular axes that cross at a central point called the origin. Positions or coordinates are determined according to the east/west and north/south displacements from the origin. The east/west axis is often called the x axis, and the north/south axis is called the y axis. For this reason, the Cartesian plane is also known as the xy -plane. The x and y axes are linear number lines, meaning that each division on a given axis always represents the same increment. However, the increments on different axes can differ. For example, in the illustration at left below, each increment on the x axis might represent 2 units, while each increment on the y axis represents 5 units. Points or coordinates are indicated by writing an opening parenthesis, the x value, a comma, the y value, and a closing parenthesis in that order. An example is ( x,y ) = (2,-5). The origin is usually, but not always, assigned the value (0,0). 

 Cartesian three-space, also called xyz -space, has a third axis, oriented at right angles to the xy plane. This axis, usually called the z axis, passes through the origin of the xy -plane. Positions or coordinates are determined according to the east/west ( x ), north/south ( y ), and up/down (z) displacements from the origin. As is the case with the x and y axes, the z axis is a linear number line. For example, in the illustration at right above, each increment on the x axis might represent 5 units, each increment on the y axis 10 units, and each increment on the z axis 2 units. Points or coordinates are indicated by writing an opening parenthesis, the x value, a comma, the y value, another comma, the z value, and a closing parenthesis in that order. An example is ( x,y,z ) = (5,-10,-4). The origin is usually, but not always, assigned the value (0,0,0).

Other coordinate systems include semilog coordinates, log-log coordinates, polar coordinates, cylindrical coordinates, spherical coordinates and azimuth and elevation.

This was last updated in October 2016

Continue Reading About Cartesian coordinates (rectangular coordinates)

SearchCompliance
  • pure risk

    Pure risk refers to risks that are beyond human control and result in a loss or no loss with no possibility of financial gain.

  • risk reporting

    Risk reporting is a method of identifying risks tied to or potentially impacting an organization's business processes.

  • risk exposure

    Risk exposure is the quantified potential loss from business activities currently underway or planned.

SearchSecurity
  • payload (computing)

    In computing, a payload is the carrying capacity of a packet or other transmission data unit.

  • script kiddie

    Script kiddie is a derogative term that computer hackers coined to refer to immature, but often just as dangerous, exploiters of ...

  • cipher

    In cryptography, a cipher is an algorithm for encrypting and decrypting data.

SearchHealthIT
SearchDisasterRecovery
  • What is risk mitigation?

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

  • fault-tolerant

    Fault-tolerant technology is a capability of a computer system, electronic system or network to deliver uninterrupted service, ...

  • synchronous replication

    Synchronous replication is the process of copying data over a storage area network, local area network or wide area network so ...

SearchStorage
  • object storage

    Object storage, also called object-based storage, is an approach to addressing and manipulating data storage as discrete units, ...

  • gigabyte (GB)

    A gigabyte (GB) -- pronounced with two hard Gs -- is a unit of data storage capacity that is roughly equivalent to 1 billion ...

  • MRAM (magnetoresistive random access memory)

    MRAM (magnetoresistive random access memory) is a method of storing data bits using magnetic states instead of the electrical ...

Close