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c     ###################################################
c     ##  COPYRIGHT (C)  1992  by  Jay William Ponder  ##
c     ##              All Rights Reserved              ##
c     ###################################################
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c     ##                                                           ##
c     ##  shunt.i  --  polynomial switching function coefficients  ##
c     ##                                                           ##
c     ###############################################################
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c     off    distance at which the potential energy goes to zero
c     off2   square of distance at which the potential goes to zero
c     cut    distance at which switching of the potential begins
c     cut2   square of distance at which the switching begins
c     c0     zeroth order coefficient of multiplicative switch
c     c1     first order coefficient of multiplicative switch
c     c2     second order coefficient of multiplicative switch
c     c3     third order coefficient of multiplicative switch
c     c4     fourth order coefficient of multiplicative switch
c     c5     fifth order coefficient of multiplicative switch
c     f0     zeroth order coefficient of additive switch function
c     f1     first order coefficient of additive switch function
c     f2     second order coefficient of additive switch function
c     f3     third order coefficient of additive switch function
c     f4     fourth order coefficient of additive switch function
c     f5     fifth order coefficient of additive switch function
c     f6     sixth order coefficient of additive switch function
c     f7     seventh order coefficient of additive switch function
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      real*8 off,off2,cut,cut2
      real*8 c0,c1,c2,c3,c4,c5
      real*8 f0,f1,f2,f3,f4,f5,f6,f7
      common /shunt/ off,off2,cut,cut2,c0,c1,c2,c3,c4,c5,
     &               f0,f1,f2,f3,f4,f5,f6,f7