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Matt J
Posts:
4,997
Registered:
11/28/09


Re: About matrix norms
Posted:
Jan 23, 2013 11:59 AM


"Martti" wrote in message <kdoaks$9mr$1@newscl01ah.mathworks.com>... > > prod(diag(s)) is the same as > > sqrt(det(A'*A)) or sqrt(det(A*A')) > > > > Bruno > > Thanks Bruno, that makes the computing much lighter! What about the name of that norm, or alternatives?
And since you're restricting attention to invertible (so presumably square) matrices, it simplifies even further,
sqrt(det(A*A')) = abs( det(A) )
Still not a norm, though, as Bruno mentioned.



