Orthonormal
Jerry Chen
contributed
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Orthonormal means the indicated lines/planes/surfaces are perpendicular to each other. Thus, the dot product between each one (which also means the projected length/area) is 0. And the dot product (projected length/area) of oneself is itself, e.g. the coordinate.
Fig 1. The coordinate
Cite as:
Orthonormal.
Brilliant.org.
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