Sparse Matrix Format Descriptions from Matrix Market. A sparse matrix algorithm development tool that runs on a Sun workstation under suntools. A package for analyzing large, sparse, possibly rank-deficient, linear systems with rational coefficients. Does basic algebraic operations, odrering, computes statistics and performs some iterative methods.
Documentation is available.
A C package for solving large sparse systems of linear equations, especially those arising from discretizations of partial differential equations. In Fortran, C and Matlab. Solves large sparse systems of real or complex linear equations. Can also solve transposed systems, find determinants, and estimate errors. May be used as preconditioners for a conjugate gradient algorithm.