The main problem for programmers working witn large matrices is
how to keep them in computer's memory. Being written in a
diskstorage, matrix involves a lot of disk exchanges, because
all MatrixAlgorithms use it "rowbyrow" and "columnbycolumn"
at the same time. Here we're proposing an original modification
of known Gauss method for pivot element elimination that uses
internal rowstranspositionvector and works with matrix strictly
"colbycol".
Our algorithm factorizes the source matrix so that created
factormatrix may be used several times for quick solution of
Linear System with any Right Parts.
LGSOLV consist of several FORTRANwritten functions, described
in README.DOC file. The file DEMOTEST.EXE is given as example of
using LGSOLV.
This is shareware.
(modified from lgsolv1.inf)
