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---- An octant is one of eight divisions.
Octant in the plane An octant is one of 8 parts of the Cartesian coordinate system. Traditionally wind direction is given as one of the 8 octants (N, NE, E, SE, S, SW, W, NW) because that is more accurate than merely giving one of the 4 quadrants, and the wind vane typically does not have enough accuracy to bother with more precise indication. Octant in 3D An octant is one of the eight divisions of a Euclidean three-dimensional coordinate system. It is similar to the two-dimensional quadrant and the one-dimensional ray. The n-dimensional generalization is the orthant. Many times, the octant with all three positive coordinates is the "first" octant, but there is no accepted naming convention for the other seven octants. | ||||||||
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