<I>world</I> args = one string for each partition of processors

  <I>universe</I> args = one or more strings

  <I>uloop</I> args = N = integer size of loop

  <I>equal</I> or <I>atom</I> args = one formula containing numbers, thermo keywords, math operations, group functions, atom values and vectors, compute and fix references, other variables

  <I>equal</I> or <I>atom</I> args = one formula containing numbers, thermo keywords, math operations, group functions, atom values and vectors, compute/fix/variable references

    numbers = 0.0, 100, -5.4, 2.8e-4, etc

    thermo keywords = vol, ke, press, etc from <A HREF = "thermo_style.html">thermo_style</A>

    math operations = (), -x, x+y, x-y, x*y, x/y, x^y, sqrt(x), exp(x), ln(x)

  {world} args = one string for each partition of processors

  {universe} args = one or more strings

  {uloop} args = N = integer size of loop

  {equal} or {atom} args = one formula containing numbers, thermo keywords, math operations, group functions, atom values and vectors, compute and fix references, other variables

  {equal} or {atom} args = one formula containing numbers, thermo keywords, math operations, group functions, atom values and vectors, compute/fix/variable references

    numbers = 0.0, 100, -5.4, 2.8e-4, etc

    thermo keywords = vol, ke, press, etc from "thermo_style"_thermo_style.html

    math operations = (), -x, x+y, x-y, x*y, x/y, x^y, sqrt(x), exp(x), ln(x)