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Say I have a square represented by the following matrix:

0   0 10  0 10  10 0   10 0   0 

Now, what would I multiply this matrix by to rotate the square (or what ever shape it is) around its center point x degrees?

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    A more precise way to state the above might be 'Say I have a square represented by the following vectors', because I don't think you mean the numbers above to represent a matrix. It looks like you are listing 5 (well, 4) vectors, -each- of which you can multiply by a rotation matrix, but not all at once.2011-10-17

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