realm and imagem might be the wrong name as realm should be a matrix with the same eigenvectors of A but the real part of the eigenvalues etc
On Friday, November 14, 2014 2:10:43 PM UTC-5, Andreas Noack wrote: > > Relative to the construction of a Symmetric matrix (which is almost a > noop) it is expensive to symmetrize it, but maybe it is negligible compared > to the operations you'll run on the matrix afterwards. > > 2014-11-13 11:25 GMT-05:00 Steven G. Johnson <[email protected] > <javascript:>>: > >> >> >> On Thursday, November 13, 2014 11:08:10 AM UTC-5, Andreas Noack wrote: >>> >>> 2) Having functions for calculating the symmetric and antisymmetric >>> part. I'm fine with adding these, but I think that most users would like to >>> use the symmetric annotation after operations like V*D*V' where it doesn't >>> matter which part you use. >>> >> >> That's true, but since computing (A+A')/2 is cheap and it is more >> generally useful, it would probably be better to default to that rather >> than just taking the upper half. >> > >
