NAG releases Mark 19 of the Fortran Library

Oxford 13 Sep 99 The latest release of theNAG Fortran Library, Mark 19, will shortly be available. It contains more than 60 new routines that extend and improve the functionality available in the areas of Fast Fourier Transforms, optimization, eigenvalue problems, sparse linear algebra, statistics, and operations research. The addition of a sparse nonlinear programming routine to the existing Optimization chapter will be of particular interest to people wishing to solve large scale optimization problems, such as those arising in financial, engineering and aerospace applications.

The Operations Research chapter has been broadened to include solvers for Quadratic Programming problems where selected variables are constrained to be integer. The rapidly expanding Sparse Linear Algebra chapter now contains iterative methods and preconditioners for complex symmetric and non-Hermitian linear systems of equations, which are particularly suitable for the solution of PDE problems.

Ad Emmen