EISPACK
is a collection of Fortran subroutines that compute
the eigenvalues and eigenvectors of nine classes of matrices:
complex general,
complex Hermitian, real general, real symmetric, real symmetric banded,
real symmetric tridiagonal, special real tridiagonal, generalized real,
and generalized real symmetric matrices.
In addition, two routines are included that
use singular value decomposition to solve
certain least-squares problems.
EISPACK is primarily based on a collection of Algol procedures
developed in the
1960s
and collected
by J. H. Wilkinson and C. Reinsch
in a volume entitled
*Linear Algebra* in the *Handbook for Automatic Computation*
[50]
series.
Since the release of EISPACK in 1972, over ten thousand copies of
the collection have been distributed worldwide.

Sun Feb 9 10:05:05 EST 1997