git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@10083 f3b2605a-c512-4ea7-a41b-209d697bcdaa
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@ -84,7 +84,7 @@ and not as variables. This is because LAMMPS can compute the energy
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for each charged particle directly as E = -x dot qE = -q (x*ex + y*ey
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+ z*ez), so that -Grad(E) = F. Similarly for point-dipole particles
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the energy can be computed as E = -mu dot E = -(mux*ex + muy*ey +
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muz*ez),
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muz*ez).
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</P>
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<P>The <I>energy</I> keyword is optional if the added force is defined with
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one or more variables, and if you are performing dynamics via the
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@ -74,7 +74,7 @@ and not as variables. This is because LAMMPS can compute the energy
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for each charged particle directly as E = -x dot qE = -q (x*ex + y*ey
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+ z*ez), so that -Grad(E) = F. Similarly for point-dipole particles
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the energy can be computed as E = -mu dot E = -(mux*ex + muy*ey +
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muz*ez),
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muz*ez).
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The {energy} keyword is optional if the added force is defined with
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one or more variables, and if you are performing dynamics via the
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