Unverified Commit a990f1dc authored by Axel Kohlmeyer's avatar Axel Kohlmeyer
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some minor fixups

parent 0b88950e
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+3 −3
Original line number Diff line number Diff line
@@ -39,9 +39,9 @@ equilibrium value.

If the 4 atoms in an improper quadruplet (listed in the data file read
by the :doc:`read_data <read_data>` command) are ordered i,j,k,l then
theta_\ *ijl* is the angle between atoms i,j and l, theta_\ *ijk* is the
angle between atoms i,j and k, theta_\ *kjl* is the angle between atoms
j,k, and l.
:math:`\theta_{ijl}` is the angle between atoms i,j and l,
:math:`\theta_{ijk}` is the angle between atoms i,j and k,
:math:`\theta_{kjl}` is the angle between atoms j,k, and l.

The "ring" improper style implements the improper potential introduced
by Destree et al., in Equation (9) of :ref:`(Destree) <Destree>`.  This
+2 −2
Original line number Diff line number Diff line
@@ -105,13 +105,13 @@ command for further details on the *setfl* format.

* lines 1,2,3 = comments (ignored)
* line 4: :math:`N_{\text{elements}}` Element1 Element2 ... ElementN
* line 5: :math:`N_\rho`, :math:`d_\rho`, :math:`N_r`, :math:`d_r`, cutoff
* line 5: :math:`N_{\rho}`, :math:`d_{\rho}`, :math:`N_r`, :math:`d_r`, cutoff

Following the 5 header lines are :math:`N_{\text{elements}}` sections, one for each
element, each with the following format:

* line 1 = atomic number, mass, lattice constant, lattice type (e.g. FCC)
* embedding function :math:`F(\rho)` (:math:`N_\rho` values)
* embedding function :math:`F(\rho)` (:math:`N_{\rho}` values)
* density function :math:`\rho(r)` (:math:`N_r` values)

Following the :math:`N_{\text{elements}}` sections, :math:`N_r` values for each pair potential