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:Conventionally, an axis is represented by a unit vector (magnitude 1), such as the above mentioned [-1 1 0], so your assumption is correct. Btw, in two-dimensional space, a rotation axis is actually defined by a point. – [[User:AdrianLozano|Adrian Lozano]] 08:02, 4 December 2006 (UTC)
::[-1,1,0] isn't a unit vector; it has norm \sqrt{2}.
::In linear algebra, vectors are typically concieved as going from the origin to some other point in space. This leads to a common notational ambiguity; does a n-tuple represent the coordinates of a point in space, or a vector from the origin to the point? It could be either; the context helps if you really need to know. But often you don't, which only encourages the laziness. [[User:Endomorphic|Endomorphic]] 02:43, 5 December 2006 (UTC)
== Large edits planned ==
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