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Created page with "{{Short description|Geometrical orientations}} {{Redirect|Upright}} {{For|other meanings of the most common terms for relative directions|Left (disambiguation)|Right (disambiguation)|Up (disambiguation)|Down (disambiguation)}} {{More citations needed|date=May 2011}} thumb|250px|A non-[[flipped image of a right-handed Cartesian coordinate system, illustrating the ''x'' (right-left), ''y'' (forward-backward) and ''z'' (up-down..."
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