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git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@8097 f3b2605a-c512-4ea7-a41b-209d697bcdaa

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sjplimp
2012-05-18 22:14:39 +00:00
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doc/dump_modify.html
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@ -358,14 +358,14 @@ In this case, the variable is evaluated at the beginning of a run to
determine the next timestep at which a dump snapshot will be written
out. On that timestep, the variable will be evaluated again to
determine the next timestep, etc. Thus the variable should return
timestep values. See the stagger() and logfreq() math functions for
<A HREF = "variable.html">equal-style variables</A>, as examples of useful functions
to use in this context. Other similar math functions could easily be
added as options for <A HREF = "variable.html">equal-style variables</A>. When
using the variable option with the <I>every</I> keyword, you also need to
use the <I>first</I> option if you want an initial snapshot written to the
dump file. The <I>every</I> keyword cannot be used with the dump <I>dcd</I>
style.
timestep values. See the stagger() and logfreq() and stride() math
functions for <A HREF = "variable.html">equal-style variables</A>, as examples of
useful functions to use in this context. Other similar math functions
could easily be added as options for <A HREF = "variable.html">equal-style
variables</A>. When using the variable option with the
<I>every</I> keyword, you also need to use the <I>first</I> option if you want
an initial snapshot written to the dump file. The <I>every</I> keyword
cannot be used with the dump <I>dcd</I> style.
</P>
<P>For example, the following commands will
write snapshots at timesteps 0,10,20,30,100,200,300,1000,2000,etc: