deal.II Newsletter #227

[Rene Gassmoeller]

Hello everyone!

This is deal.II newsletter #227.
It automatically reports recently merged features and discussions about the deal.II finite element library.

Below you find a list of recently proposed or merged features:

#14321: Rotate for dim=1 spacedim=2 (proposed by peterrum)
#14320: CGAL: use dealii's constexpr Utilities::pow instead of std::pow (proposed by tamiko; merged)
#14318: Versions for weight_fe_q_dofs_by_entity/compute_weights_fe_q_dofs_by_entity with Q4 storage (proposed by peterrum)
#14317: Create compute_weights_fe_q_dofs_by_entity() (proposed by peterrum)
#14316: Add TensorProductMatrixCreator namespace (proposed by peterrum)
#14315: FEEvaluation::submit_xxx(): Create some local copies to reduce potential aliasing (proposed by kronbichler)
#14314: Reduce organizational overhead/pointer chasing in FEEvaluation/read (proposed by kronbichler)
#14313: Do not dereference cend (proposed by dangars; merged)
#14312: Restructure includes of FloatingPointComparator (proposed by kronbichler; merged)
#14311: Simplify code in DoFInfo::read_dof_indices (proposed by kronbichler; merged)
#14310: Add shortcut to detect whether a DoF is constrained (proposed by kronbichler; merged)
#14309: Fix exponential complexity of FloatingPointComparator with nesting (proposed by kronbichler; merged)
#14308: CGAL: fix warnings and fix compilation with cgal 5.5 (proposed by tamiko; merged)
#14307: Use FloatingPointComparator in TriangulationDescription (proposed by peterrum; merged)
#14306: Add missing header file (proposed by kronbichler; merged)
#14305: GridTools::MarchingCubeAlgorithm: add 1d implementation (proposed by mschreter)
#14304: Remove SparsityPatternBase, for now. (proposed by drwells)
#14303: Increase precision of time written in xdmf output (proposed by sebproell; merged)
#14302: Clean up weight_fe_q_dofs_by_entity (proposed by peterrum; merged)
#14301: Do not mention update_cell_dof_indices_cache in documentation (proposed by kronbichler; merged)
#14300: Do not default initialize projection matrix in GMRES (proposed by kronbichler; merged)
#14299: Remove reference to update_cell_dof_indices_cache (proposed by kronbichler; merged)
#14298: Use FloatingPointComparator in TensorProductMatrixSymmetricSumCollection (proposed by peterrum; merged)
#14297: TensorProductMatrixSymmetricSumCollection: store matrices/vectors flat (proposed by peterrum; merged)
#14296: Rename FPArrayComparator -> FloatingPointComparator (proposed by peterrum; merged)
#14246: Improve error message. (proposed by bangerth; merged)
#14234: Normal flux constraints: map DoF indices to vector DoF indices (proposed by zjiaqi2018; merged)

And this is a list of recently opened or closed discussions:

#14319 Compilation failure on the tester when compiling with clang (cgal 5.2.2) (opened and closed)
#13411 Setup of MatrixFree got slower since release 9.3 (closed)

A list of all major changes since the last release can be found at this website.

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