sgbbrd(3) on Linux
The text 1ff81e375ed6, as Debian 3.1 (Sarge) shipped it.
reduce a real general m-by-n band matrix A to upper bidiagonal form B by an orthogonal transformation
The text 1ff81e375ed6, as Debian 3.1 (Sarge) shipped it.
reduce a real general m-by-n band matrix A to upper bidiagonal form B by an orthogonal transformation