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The Epic Interactive Encyclopedia 1998
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Epic Interactive Encyclopedia, The - 1998 Edition (1998)(Epic Marketing).iso
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Cartesian_coordinates
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1992-09-03
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In coordinate geometry, the components of a
system used to represent vectors or to denote
the position of a point on a plane (two
dimensions) or in space (three dimensions)
with reference to a set of two or more axes.
The Cartesian coordinate system can be
extended to any finite number of dimensions
(axes), and is used thus in theoretical
mathematics. It is named after Descartes. For
a plane defined by two axes at right angles
(a horizontal x-axis and a vertical y-axis),
the coordinates of a point are given by its
perpendicular distances from the y-axis and
x-axis, written in the form (x,y). For
example, a point P that lies three units from
the y-axis and four units from the x-axis has
Cartesian coordinates (3,4). In
three-dimensional coordinate geometry, points
are located with reference to a third,
z-axis. The system is useful in creating
technical drawings of machines or buildings,
and in computer-aided design (CAD).