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# 15 20-12-2010 , 11:18 AM
Chirone's Avatar
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Join Date: Dec 2007
Location: NZ
Posts: 3,125
ctbram, i was referring to his second question in his second post
i forgot part way through my earlier reply to his rotation matrix that it was 2D space he was working in for that question.
in which case all he has to do is turn his points into column vectors and multiply it by the rotation matrix

silver: a column vector is a vector where the numbers are listed vertically.
eg,
Code:
(1
 2)
is a column vector because the numbers are going down, as opposed to
Code:
(1,2)
which is a row vector because the numbers are going across ways

basically, the way the vector is written influences the result when you multiply it by a matrix.
do you need an example of a vector multiplied to a matrix?


This is not rocket science guys.

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