Math::MatrixSparse - a pure Perl module implementing sparse matrices. =================================================================== Math::MatrixSparse is a module implementing naive sparse matrices. Its syntax is designed to partially overlap with Math::MatrixReal where possible and reasonable. Basic matrix operations are present, including addition, subtraction, scalar multiplication, matrix multiplication, transposition, and exponentiation. Three methods of solving systems iteratively are available, including Jacobi, Gauss-Seidel, and Symmetric Over-Relaxation. Real-valued matrices can be read from files in the Matrix Market and Harwell Boeing formats, and written in the Matrix Market format. In addition, they can be read from a given string. Certain special types of matrices are understood, but not optimized for, such as upper and lower triangular, diagonal, symmetric, skew-symmetric, positive, negative, and pattern. Methods are available to determine the properties of a given matrix. Individual rows, columns, and diagonals of matrices can be obtained, as can the upper and lower triangular, symmetric, skew symmetric, positive and negative portions. INSTALLATION To install this module type the following: perl Makefile.PL make make test make install DEPENDENCIES This module requires no other modules besides those that come with Perl. AUTHORS Math::MatrixSparse was originally developed by Jacob C. Kesinger. However, as he seems to have orphaned the module, I (Gabor) took over the maintenance (unfortunately, out of CPAN), and I actively develop it. At the moment, Math::MatrixSparse can serve as a drop-in-replacement for Math::MatrixReal. Also, it provides the base matrix class for Math::GLPK. COPYRIGHT AND LICENCE Copyright (C) 2002 Jacob C. Kesinger (kesinger@math.ttu.edu) 2004 Gabor Retvari (retvari@tmit.bme.hu) This module is distributed under the same terms as perl, i.e. Math::MatrixSparse may be copied only under the terms of either the Artistic License or the GNU General Public License, which may be found in the Perl 5 source kit. Download Math::MatrixSparse Back