*typo in online GSL documentation for SVD@ 2012-01-20 20:07 William Wu2012-02-03 15:16 ` Rhys Ulerich 0 siblings, 1 reply; 2+ messages in thread From: William Wu @ 2012-01-20 20:07 UTC (permalink / raw) To: gsl-discuss Hello GSL developers, I may have noticed a small typo in the online documentation for the Singular Value Decomposition, which can be found at http://www.math.utah.edu/software/gsl/gsl-ref_206.html The first sentence reads: "A general rectangular @math{M}-by-@math{N} matrix @math{A} has a singular value decomposition (SVD) into the product of an @math{M}-by-@math{N} orthogonal matrix @math{U}, an @math{N}-by-@math{N} diagonal matrix of singular values @math{S} and the transpose of an @math{M}-by-@math{M} orthogonal square matrix @math{V}" However, I think the matrix V should be N-by-N in order for the matrix multiplication A = U S V^T to make sense. So the corrected sentence would be: "A general rectangular @math{M}-by-@math{N} matrix @math{A} has a singular value decomposition (SVD) into the product of an @math{M}-by-@math{N} orthogonal matrix @math{U}, an @math{N}-by-@math{N} diagonal matrix of singular values @math{S} and the transpose of an @math{N}-by-@math{N} orthogonal square matrix @math{V}" Thank you for the GSL. Regards, -- William Wu ^ permalink raw reply [flat|nested] 2+ messages in thread

*2012-01-20 20:07 typo in online GSL documentation for SVD William WuRe: typo in online GSL documentation for SVD@ 2012-02-03 15:16 ` Rhys Ulerich0 siblings, 0 replies; 2+ messages in thread From: Rhys Ulerich @ 2012-02-03 15:16 UTC (permalink / raw) To: William Wu;+Cc:gsl-discuss Hi William > I may have noticed a small typo in the online documentation for the > Singular Value Decomposition, which can be found at > > http://www.math.utah.edu/software/gsl/gsl-ref_206.html Thank you for the bug report. It appears this has already been fixed in the more recent versions of the documentation. Compare the link you provided with the latest at http://www.gnu.org/software/gsl/manual/html_node/Singular-Value-Decomposition.html Cheers, Rhys ^ permalink raw reply [flat|nested] 2+ messages in thread

end of thread, other threads:[~2012-02-03 15:16 UTC | newest]Thread overview:2+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2012-01-20 20:07 typo in online GSL documentation for SVD William Wu 2012-02-03 15:16 ` Rhys Ulerich

This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).