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root/group/trunk/OOPSE/libmdtools/BondExtensions.cpp
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Comparing trunk/OOPSE/libmdtools/BondExtensions.cpp (file contents):
Revision 564 by mmeineke, Tue Jun 24 19:57:54 2003 UTC vs.
Revision 594 by mmeineke, Fri Jul 11 22:34:48 2003 UTC

# Line 29 | Line 29 | double HarmonicBond::bond_force( double r_ab ){
29    dr = r_ab - d0;
30    dr2 = dr * dr;
31  
32 <  c_potential_E = k0 * dr2;
33 <  force = -2.0 * k0 * dr;
32 >  c_potential_E = 0.5* k0 * dr2;
33 >  force = - k0 * dr;
34    return force;
35  
36   }

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