Changes in version 1.6.0ΒΆ

UFL 1.6.0 was released on 2015-07-28.

  • Change approach to attaching __hash__ implementation to accomodate Python 3
  • Implement new non-recursive traversal based hash computation
  • Allow derivative(M, ListTensor(<scalars>), ...) just like list/tuple works
  • Add traits is_in_reference_frame, is_restriction, is_evaluation, is_differential
  • Add missing linear operators to ArgumentDependencyExtractor
  • Add _ufl_is_literal_ type trait
  • Add _ufl_is_terminal_modifier_ type trait and Expr._ufl_terminal_modifiers_ list
  • Add new types ReferenceDiv and ReferenceCurl
  • Outer product element support in degree estimation
  • Add TraceElement, InteriorElement, FacetElement, BrokenElement
  • Add OuterProductCell to valid Real elements
  • Add _cache member to form for use by external frameworks
  • Add Sobolev space HEin
  • Add measures dI, dO, dC for interface, overlap, cutcell
  • Remove Measure constants
  • Remove cell2D and cell3D
  • Implement reference_value in apply_restrictions
  • Rename point integral to vertex integral and kept *dP syntax
  • Replace lambda functions in ufl_type with named functions for nicer stack traces
  • Minor bugfixes, removal of unused code and cleanups