git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@4451 f3b2605a-c512-4ea7-a41b-209d697bcdaa
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@ -56,6 +56,7 @@ results from a unitless LJ simulation into physical quantities.
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<LI>charge = reduced LJ charge, where q* = q / (4 pi perm0 sigma epsilon)^1/2
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<LI>dipole = reduced LJ dipole, moment where *mu = mu / (4 pi perm0 sigma^3 epsilon)^1/2
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<LI>electric field = force/charge, where E* = E (4 pi perm0 sigma epsilon)^1/2 sigma / epsilon
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<LI>density = mass/volume, where rho* = rho sigma^dim
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</UL>
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<P>For style <I>real</I>, these are the units:
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</P>
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@ -72,6 +73,7 @@ results from a unitless LJ simulation into physical quantities.
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<LI>charge = multiple of electron charge (+1.0 is a proton)
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<LI>dipole = charge*Angstroms
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<LI>electric field = volts/Angstrom
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<LI>density = gram/cm^dim
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</UL>
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<P>For style <I>metal</I>, these are the units:
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</P>
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@ -87,7 +89,8 @@ results from a unitless LJ simulation into physical quantities.
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<LI>dynamic viscosity = Poise
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<LI>charge = multiple of electron charge (+1.0 is a proton)
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<LI>dipole = charge*Angstroms
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<LI>electric field = volts/Angstrom
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<LI>electric field = volts/Angstrom
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<LI>density = gram/cm^dim
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</UL>
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<P>For style <I>si</I>, these are the units:
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</P>
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@ -104,6 +107,7 @@ results from a unitless LJ simulation into physical quantities.
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<LI>charge = Coulombs
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<LI>dipole = Coulombs*meters
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<LI>electric field = volts/meter
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<LI>density = kilograms/meter^dim
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</UL>
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<P>For style <I>cgs</I>, these are the units:
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</P>
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@ -120,6 +124,7 @@ results from a unitless LJ simulation into physical quantities.
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<LI>charge = statcoulombs or esu
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<LI>dipole = statcoul-cm = 10^18 debye
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<LI>electric field = statvolt/cm or dyne/esu
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<LI>density = grams/cm^dim
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</UL>
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<P>The units command also sets the timestep size and neighbor skin
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distance to default values for each style. For style <I>lj</I> these are
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@ -52,7 +52,8 @@ pressure = reduced LJ pressure, where P* = P sigma^3 / epsilon
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dynamic viscosity = reduced LJ viscosity, where eta* = eta sigma^3 / epsilon / tau
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charge = reduced LJ charge, where q* = q / (4 pi perm0 sigma epsilon)^1/2
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dipole = reduced LJ dipole, moment where *mu = mu / (4 pi perm0 sigma^3 epsilon)^1/2
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electric field = force/charge, where E* = E (4 pi perm0 sigma epsilon)^1/2 sigma / epsilon :ul
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electric field = force/charge, where E* = E (4 pi perm0 sigma epsilon)^1/2 sigma / epsilon
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density = mass/volume, where rho* = rho sigma^dim :ul
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For style {real}, these are the units:
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@ -68,7 +69,8 @@ pressure = atmospheres
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dynamic viscosity = Poise
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charge = multiple of electron charge (+1.0 is a proton)
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dipole = charge*Angstroms
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electric field = volts/Angstrom :ul
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electric field = volts/Angstrom
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density = gram/cm^dim :ul
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For style {metal}, these are the units:
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@ -84,7 +86,8 @@ pressure = bars
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dynamic viscosity = Poise
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charge = multiple of electron charge (+1.0 is a proton)
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dipole = charge*Angstroms
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electric field = volts/Angstrom :ul
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electric field = volts/Angstrom
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density = gram/cm^dim :ul
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For style {si}, these are the units:
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@ -100,7 +103,8 @@ pressure = Pascals
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dynamic viscosity = Pascal*second
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charge = Coulombs
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dipole = Coulombs*meters
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electric field = volts/meter :ul
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electric field = volts/meter
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density = kilograms/meter^dim :ul
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For style {cgs}, these are the units:
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@ -116,7 +120,8 @@ pressure = dyne/cm^2 or barye = 1.0e-6 bars
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dynamic viscosity = Poise
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charge = statcoulombs or esu
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dipole = statcoul-cm = 10^18 debye
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electric field = statvolt/cm or dyne/esu :ul
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electric field = statvolt/cm or dyne/esu
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density = grams/cm^dim :ul
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The units command also sets the timestep size and neighbor skin
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distance to default values for each style. For style {lj} these are
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@ -323,7 +323,7 @@ arguments are non-zero, else return a 0.0. The logical OR operator
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will return 1.0 of either of its arguments is non-zero, else return a
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0.0. These relational and logical operators can be used as a masking
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or selection operation in a formula. For example, the number of atoms
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whose properties satisy one or more criteria could be calculated by
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whose properties satifsy one or more criteria could be calculated by
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taking the returned per-atom vector of ones and zeroes and passing it
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to the <A HREF = "compute_reduce.html">compute reduce</A> command.
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</P>
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@ -322,7 +322,7 @@ arguments are non-zero, else return a 0.0. The logical OR operator
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will return 1.0 of either of its arguments is non-zero, else return a
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0.0. These relational and logical operators can be used as a masking
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or selection operation in a formula. For example, the number of atoms
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whose properties satisy one or more criteria could be calculated by
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whose properties satifsy one or more criteria could be calculated by
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taking the returned per-atom vector of ones and zeroes and passing it
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to the "compute reduce"_compute_reduce.html command.
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