dstevx(3) on Linux
The text 21a37b8b95d2, as Debian 4.0 (Etch) shipped it.
compute selected eigenvalues and, optionally, eigenvectors of a real symmetric tridiagonal matrix A
The text 21a37b8b95d2, as Debian 4.0 (Etch) shipped it.
compute selected eigenvalues and, optionally, eigenvectors of a real symmetric tridiagonal matrix A