Numbers which indicate the location of a point relative to a fixed reference point (the origin), being its shortest (perpendicular) distances from two fixed axes (or three planes defined by three fixed axes) which intersect at right angles at the origin.
- Some of the things you learn to do with about Cartesian coordinates, or vectors, in the plane would work equally well in 3 or more dimensions.
- Three others also use balls, one involving balls in columns, one involving two balls of different colours which move at right angles to each other suggesting almost the idea of Cartesian coordinates.
- A point in the plane can be described by Cartesian coordinates.
Definition of Cartesian coordinates in:
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