ABSTRACT
ARPACK is a library of Fortran77 subroutines designed to compute a selected subset of the eigenvalues of a large matrix. It is based upon a limited storage scheme called the implicitly restarted Arnoldi method (IRAM) [Sor92]. This software can solve largescale non-Hermitian or Hermitian (standard and generalized) eigenvalue problems. The IRA method is described in Chapter 44, Implicitly Restarted Arnoldi Method.
