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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.
C THIS ROUTINE SETS ALL VALUES IN A VECTOR A TO ZERO IF
C THEY ARE BELOW A SPECIFIED TOLERANCE (TOL).
SUBROUTINE FILTER(A,LENGTH,TOL)
IMPLICIT DOUBLE PRECISION (A-H,O-Z)
DIMENSION A(LENGTH)
if (length.lt.1) return
DO I = 1, LENGTH
X = ABS(A(I))
IF (X.LT.TOL) A(I) = 0.0
END DO
RETURN
END
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