Version 1.1, Apr 2009

Harold T. Stokes and Dorian M. Hatch,
Department of Physics and Astronomy, Brigham
Young University, Provo, Utah, 84602, USA, stokesh@byu.edu

**Description:**
Find a complete list of order parameters, given the
space-group symmetries of the parent and subgroup in a phase transition.
**Help**
**Version History**
**How to cite COPL**: ISOTROPY Software Suite, iso.byu.edu.

Also D. M. Hatch and H. T. Stokes, "COPL:
Program for Obtaining a Complete List of Order Parameters for a
Group-Subgroup Crystalline Phase Transition."
*J. Appl. Cryst.* **35**, 379 (2002)

And D. M. Hatch and H. T. Stokes,
"The Complete Listing of Order Parameters for a Crystalline Phase Transition:
A Solution to the Generalized Landau Problem."
*Phys. Rev. B* **65**, 014113-1-4 (2002).

Below, default input is given as an example. You may submit this form as given to see the output of this example.