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James wrote:
> Also, geometrically, what is O(n)? I would like to learn even more about
> SO(n) and O(n) geometrically, but I am not sure which questions to ask.
> Can you recommend a good reference for me to learn?
I can't think of a reference - probably "google orthogonal matrix"
is as good as anything -
but it is worth noting that a rotation T in SO(n) is a product
of 2-dimensional rotations,
as can be seen by considering its eigenvalues and eigenvectors.
--
Timothy Murphy
e-mail (<80k only): tim /at/ birdsnest.maths.tcd.ie
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland
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