coordinate system

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coordinate system

Arrangement of reference lines or curves used to identify the location of points in space. In two dimensions, the most common system is the Cartesian (after René Descartes) system. Points are designated by their distance along a horizontal (x) and vertical (y) axis from a reference point, the origin, designated (0, 0). Cartesian coordinates also can be used for three (or more) dimensions. A polar coordinate system locates a point by its direction relative to a reference direction and its distance from a given point, also the origin. Such a system is used in radar or sonar tracking and is the basis of bearing-and-range navigation systems. In three dimensions, it leads to cylindrical and spherical coordinates.

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Using Eglash's Virtual Bead Loom program, you can experiment with the Cartesian coordinate system to make your own beautiful works of art.

Math of the world by Sohn, Emily / Science News for Kids

The major problem is transmission of the actual operative field coordinate system to the coordinate system of the three-dimensional spatial model that has been previously designed from a series of CT images during preoperative preparation (figure 4).

Computer-assisted surgery and computer-assisted telesurgery in ... by Glusac, Branko / Ear, Nose and Throat Journal

He is immortalized today in the name of the Cartesian coordinate system, and the transformation of thought he helped usher has left repercussions up to the modern day.

Descartes: A Biography by Internet Bookwatch

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