Recommend 1/ps interaction frequency

docs-source/usersguide/application.rst

@@ -1071,7 +1071,7 @@ computational efficiency with respect to :code:`LangevinMiddleIntegrator`.  The
 thermostated integrator is minimally created with syntax analogous to the
 :code:`LangevinMiddleIntegrator` example above::
 
-    NoseHooverIntegrator integrator(300*kelvin, 25/picosecond,
+    NoseHooverIntegrator integrator(300*kelvin, 1/picosecond,
                                     0.004*picoseconds);
 
 The first argument specifies the target temperature.  The second specifies the
@@ -1079,7 +1079,9 @@ frequency of interaction with the heat bath: a lower value interacts minimally,
 yielding the microcanonical ensemble in the limit of a zero frequency, while a
 larger frequency will perturb the system greater, keeping it closer to the
 target temperature.  The third argument is the integration timestep that, like
-the other arguments, must be specified with units.
+the other arguments, must be specified with units.  For initial equilibration
+to the target temperature, a larger interaction frequency is recommended,
+*e.g.* 25 ps\ :sup:`-1`.
 
 This integrator supports lots of other options, including the ability to couple
 different parts of the system to thermostats at different temperatures. See the