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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 DCHECK(RREF,RVEC,ISIZE)
IMPLICIT DOUBLE PRECISION (A-H,O-Z)
DIMENSION RVEC(ISIZE),RREF(ISIZE)
PI=DACOS(-1.D0)
DO 55 I=6,ISIZE,3
IF(DABS(RVEC(I)).GT.3.D0)THEN
IF(SIGN(1.D0,RVEC(I)).NE.SIGN(1.D0,RREF(I)))
& RVEC(I)=SIGN(1.D0,RREF(I))*(2.D0*PI-DABS(RVEC(I)))
ENDIF
55 CONTINUE
RETURN
END
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