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C Copyright (c) 2003-2010 University of Florida
C
C This program is free software; you can redistribute it and/or modify
C it under the terms of the GNU General Public License as published by
C the Free Software Foundation; either version 2 of the License, or
C (at your option) any later version.
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
C GNU General Public License for more details.
C The GNU General Public License is included in this distribution
C in the file COPYRIGHT.
SUBROUTINE NORMAL(X,N)
C
C NORMALIZES VECTOR X
C
IMPLICIT DOUBLE PRECISION (A-H,O-Z)
DIMENSION X(N)
Q=0.D0
DO 10 I=1,N
10 Q=Q+X(I)**2
P=DSQRT(Q)
IF(P.LT.1D-14)THEN
WRITE(6,*)' null vector returned from NORMAL'
RETURN
ENDIF
DO 11 I=1,N
11 X(I)=X(I)/P
RETURN
END
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