Hi, I want to find the number of parameters needed to define an orthogonal transformation in R(adsbygoogle = window.adsbygoogle || []).push({}); ^{n}.

As I suppose, this equals the dimension of the orthogonal group O(n,R) - but, correct me if I'm wrong.

I haven't been able to figure out how to do this yet. If it helps, I know that an orthogonal matix should have n(n+1)/2 "free components".

That said, I'd appreciate any hint from this point.

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# I Dimension of the group O(n,R) - How to calc?

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