Learning Geometry
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3D coordinate systems and its octants
In this section we will cover a more complicated section of geometry:
Three dimensional coordinate systems (x,y,z)
Unlike The Cartesian plane (rectangular coordinate system) that is determined by 2 axis and their intersections, the 3-D coordinate system is formed by passing a z-axis perpendicular to both the x- and y-axes at the origin, creating not only a new axis of perspective, but also new concepts of planes and grouping x with y or y with z, for example.
There are two different orientations for this system; right handed and left handed.
Right handed is positive, and also the standard form for the x,y,z system.
Octants are the division of the three dimensional coordinate system They are equivalent to the Cartesian planes quadrants and are used in the same grouping manner where they depend on their coordinates.
There are 8 octants in a three dimensional coordinate system, hence the name, OCTant. (meaning 8)
Three dimensional coordinate system (x,y,z)
Octant
