/usr/share/doc/python-ufl-doc/demo/ExplicitConvection.ufl is in python-ufl-doc 2016.2.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 | #
# Author: Martin Sandve Alnes
# Date: 2008-10-03
#
element = VectorElement("Lagrange", triangle, 1)
u = TrialFunction(element)
v = TestFunction(element)
w = Coefficient(element)
a = dot( dot(w, grad(u)), v ) * dx
|