## octa-
^{1} If a three-dimensional rectangular coordinate system is set up then the space is divided by the coordinate planes into eight octants. Each octant is bounded by three mutually perpendicular coordinate planes. ## Reference- Gotze, Heinz.
*Castel del Monte, Geometric Marvel of the Middle Ages*. New York: Prestel, 1998.
## Related category• NOTABLE NUMBERS | |||||||

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