How do I show ... if C and Q are nxn orthogonal matrices then so are CQ and (C^T)QC

Find the closest line to the points (-1, 0); (0, 1); (1, 2); (2, 4).

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- November 2nd 2009, 08:55 AMNoxideOrthogonality
How do I show ... if C and Q are nxn orthogonal matrices then so are CQ and (C^T)QC

Find the closest line to the points (-1, 0); (0, 1); (1, 2); (2, 4). - November 2nd 2009, 01:48 PMKrizalid
- November 2nd 2009, 03:41 PMmath2009