ADAS Subroutine four

      SUBROUTINE FOUR(A,B)
C-----------------------------------------------------------------------
C
C  ******************** FORTRAN 77SUBROUTINE: FOUR *********************
C
C  PURPOSE:
C        TO CALCULATE THE BURGESS KNOT POINTS
C
C  CALLING PROGRAM:
C        LSTSQ
C
C  INPUT:
C        (R*8) A - MATRIX CONTAINING REDUCED PARAMETERS
C  OUTPUT:
C        (R*8) B - THE BURGESS KNOT POINTS
C
C  ROUTINES:
C        MATIN1
C
C  DATE:   21/06/95				VERSION 1.1
C
C  AUTHOR: A.LANZAFAME (UNIV. OF STRATHCLYDE) & D.H.BROOKS
C          CONVERTED FROM BURGESS BBC BASIC
C
C----------------------------------------------------------------------
      REAL*8              A(5,5),      B(5)