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| author | langou <langou@users.noreply.github.com> | 2009-02-09 22:08:05 +0000 |
|---|---|---|
| committer | langou <langou@users.noreply.github.com> | 2009-02-09 22:08:05 +0000 |
| commit | 2e3389623f8a58ae48e56ccec8c00bb9a8174388 (patch) | |
| tree | 94ab16db5a2e233ff6ad04fab1c62607a71fa2d9 /SRC/zlahr2.f | |
| parent | 2d7bbcf1a5c3552997100e747653294b01fa429a (diff) | |
| download | lapack-2e3389623f8a58ae48e56ccec8c00bb9a8174388.tar.gz lapack-2e3389623f8a58ae48e56ccec8c00bb9a8174388.tar.bz2 lapack-2e3389623f8a58ae48e56ccec8c00bb9a8174388.zip | |
Diffstat (limited to 'SRC/zlahr2.f')
| -rw-r--r-- | SRC/zlahr2.f | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/SRC/zlahr2.f b/SRC/zlahr2.f index 8822ed69..ba56ed77 100644 --- a/SRC/zlahr2.f +++ b/SRC/zlahr2.f @@ -100,11 +100,18 @@ * modified element of the upper Hessenberg matrix H, and vi denotes an * element of the vector defining H(i). * -* This file is a slight modification of LAPACK-3.0's ZLAHRD +* This subroutine is a slight modification of LAPACK-3.0's DLAHRD * incorporating improvements proposed by Quintana-Orti and Van de * Gejin. Note that the entries of A(1:K,2:NB) differ from those -* returned by the original LAPACK routine. This function is -* not backward compatible with LAPACK3.0. +* returned by the original LAPACK-3.0's DLAHRD routine. (This +* subroutine is not backward compatible with LAPACK-3.0's DLAHRD.) +* +* References +* ========== +* +* Gregorio Quintana-Orti and Robert van de Geijn, "Improving the +* performance of reduction to Hessenberg form," ACM Transactions on +* Mathematical Software, 32(2):180-194, June 2006. * * ===================================================================== * |