C ++********************************************************************
C                                                                      *
C                                                                      *
C                                                                      *
C **********************************************************************
C=* FROM: SPIDER - MODULAR IMAGE PROCESSING SYSTEM.   AUTHOR: J.FRANK  *
C=* Copyright (C) 1985-2005  Health Research Inc.                      *
C=*                                                                    *
C=* HEALTH RESEARCH INCORPORATED (HRI),                                *   
C=* ONE UNIVERSITY PLACE, RENSSELAER, NY 12144-3455.                   *
C=*                                                                    *
C=* Email:  spider@wadsworth.org                                       *
C=*                                                                    *
C=* This program is free software; you can redistribute it and/or      *
C=* modify it under the terms of the GNU General Public License as     *
C=* published by the Free Software Foundation; either version 2 of the *
C=* License, or (at your option) any later version.                    *
C=*                                                                    *
C=* This program is distributed in the hope that it will be useful,    *
C=* but WITHOUT ANY WARRANTY; without even the implied warranty of     *
C=* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU  *
C=* General Public License for more details.                           *
C=*                                                                    *
C=* You should have received a copy of the GNU General Public License  *
C=* along with this program; if not, write to the                      *
C=* Free Software Foundation, Inc.,                                    *
C=* 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.      *
C=*                                                                    *
C **********************************************************************
C                                                                      *
C                                                                      *
C                                                                      *
C  PURPOSE:                                                            *
C
C     FINDS THE EXTREME VALUES OF ARRAY X(N)                                  
C                XMAX  = MAXIMUM VALUE                                          
C                XMIN  = MINIMUM VALUE                                          
C
C     CALLED BY: HPLAN     HISMAP    HISMAPO     HISMAP4
c
C     SUBROUTINE REMOVED FROM HPLAN.FOR FILE  APRIL 89 al
C
C  PARAMETERS:                                                         *
C                                                                      *
C        0         2         3         4         5         6         7 *
C23456789012345678901234567890123456789012345678901234567890123456789012
C***********************************************************************

      SUBROUTINE  BORNS ( N, X, XMIN, XMAX )                                    

      DIMENSION  X(N)
                                                           
      XMIN  = X(1)                                                              
      XMAX  = X(1)                                                              
      IF (N .EQ. 1) RETURN                                             

      DO   I = 2,N   
         XMIN=AMIN1(XMIN,X(I))
         XMAX=AMAX1(XMAX,X(I))                                                       
      ENDDO

      END