C Library Functions  - gcsgau1 (3)

NAME

gcsgau1(3f) - [M_math] solve a system of simultaneous linear equations (LICENSE:PD)

CONTENTS

Synopsis
Description
Pedigree
Written By
License

SYNOPSIS

subroutine gcsgau1(n,a,b)

   integer,parameter  :: dp=kind(0.0d0)
   integer,intent(in) :: n
   real(kind=dp)      :: a(11,11)
   real(kind=dp)      :: b(*)

DESCRIPTION

Solve a system of simultaneous linear equations of the form

     **                           **  **    **   **    **
     * A(1,1)  A(1,2)  ...  A(1,N) *  * X(1) *   * B(1) *
     *                             *  *      *   *      *
     * A(2,1)  A(2,2)  ...  A(2,N) *  * X(2) *   * B(2) *
     *                             *  *      *   *      *
     *    .       .            .   *  *   .  * = *   .  *
     *    .       .            .   *  *   .  *   *   .  *
     *    .       .            .   *  *   .  *   *   .  *
     *                             *  *      *   *      *
     * A(N,1)  A(N,2)  ...  A(N,N) *  * X(N) *   * B(N) *
     **                           **  **    **   **    **

where matrices A and B are known and matrix X is the set of unknowns to be determined. N is the number of equations.

PEDIGREE

Based on

     Graphics Compatibility System
         3-D Device-Dependent
          Subroutine GCSGAU1
                Level 7

WRITTEN BY

Fred Taylor, Computer Analysis Branch USAEWES, Vicksburg, MS. 39180

LICENSE

Public Domain


Nemo Release 3.1 gcsgau1 (3) July 22, 2023
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