Linear Solver for Double Dimensioned Arrays

SOLVE is a MATLAB library which solves a linear system of equations A*x=b using Gauss elimination.

In MATLAB, of course, one can simply type "x = A\b" and get an answer, even if the matrix is ill-conditioned, singular, complex, rectangular (over-determined or under-determined).

Nonetheless, this library is useful because:


The computer code and data files made available on this web page are distributed under the GNU LGPL license.


SOLVE is available in a C version and a C++ version and a FORTRAN77 version and a FORTRAN90 version and a MATLAB version.

Related Data and Programs:

LINPACK, a MATLAB library which solves linear systems for a variety of matrix storage schemes, real or complex arithmetic, and single or double precision. It includes a routine for computing the singular value decomposition (SVD) of a rectangular matrix. The original version of this library is by Jack Dongarra, Jim Bunch, Cleve Moler, Pete Stewart.

R8LIB, a MATLAB library which contains many utility routines using double precision real (R8) arithmetic.

Source Code:

Examples and Tests:

You can go up one level to the MATLAB source codes.

Last revised on 29 May 2014.