Hello everyone! This is deal.II newsletter #307. 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: #18053: Reference readme when step-XX.diff is missing. (proposed by marcfehling) https://github.com/dealii/dealii/pull/18053 #18052: Fix a file name in a cmake file. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/18052 #18051: Fix macro name in the documentation; also fix file name. (proposed by bangerth) https://github.com/dealii/dealii/pull/18051 #18049: Fix various typos (proposed by luzpaz; merged) https://github.com/dealii/dealii/pull/18049 #18047: Update linux debug cuda-11 CI to use Ubuntu 22.04 (proposed by masterleinad) https://github.com/dealii/dealii/pull/18047 #18045: Add tutorial step-97. (proposed by cembooks) https://github.com/dealii/dealii/pull/18045 #18044: Parallel vector: Add assert for ghosts in global vector ops (proposed by kronbichler) https://github.com/dealii/dealii/pull/18044 #18042: Consider number of components in n_local_dofs (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/18042 #18041: Remove n_dofs_1d from local operation class of matrix-free operation (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/18041 #18040: Avoid the use of GeometryInfo in FE_RaviartThomas. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/18040 #18039: Extend portable compute_diagonal() to multiple components (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/18039 #18038: Avoid old orientation functions 2 (proposed by drwells) https://github.com/dealii/dealii/pull/18038 #18036: Fix MF::get_cell_active_fe_index() for non-hp and hp-DoFHandlers (proposed by nmuch; merged) https://github.com/dealii/dealii/pull/18036 #18035: MatrixFree: encode the orientation as (!orientation, rotation, flip). (proposed by drwells; merged) https://github.com/dealii/dealii/pull/18035 #18033: Add missing include (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/18033 #18031: Make GridGenerator::hyper_ball() work in dim=2, spacedim=3. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/18031 #18030: Add 3D alfeld (barycenter) refinement capability (proposed by KJSchwiebert; merged) https://github.com/dealii/dealii/pull/18030 #18029: Deprecate IndexSet::pop_front/back(). (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/18029 #18028: Fix an issue with spaces in ParameterHandler output. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/18028 #18027: Rename unit_tangential/normal_vectors() to face_tangent/normal_vector(). (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/18027 #18026: Break the include cycle between tria.h and tria_accessor.h. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/18026 #18024: Break the cycle of header includes between template_constraints.h and complex_overloads.h. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/18024 #18023: Better document our mixed complex overloads. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/18023 #18022: Move hardcoded orientation values around (proposed by drwells; merged) https://github.com/dealii/dealii/pull/18022 #18020: Fix misspellings. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/18020 #18019: Break the include cycle between dof_handler.h and dof_accessor.h. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/18019 #18013: Add detect-include-cycle check to pre-commit. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/18013 #18009: Represent line orientations with `types::geometric_orientation`. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/18009 #18008: MatrixFree: enable DiagonalMatrix in loops (proposed by bergbauer; merged) https://github.com/dealii/dealii/pull/18008 #18001: Avoid the use of GeometryInfo in particle_handler.cc. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/18001 #17755: Nedelec orientation fix nr.1. (proposed by cembooks; merged) https://github.com/dealii/dealii/pull/17755 #17406: TrilinosWrappers::SolverDirect for Epetra data structures (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/17406 #17256: Default SolverControl to not print to deallog. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17256 ## And this is a list of recently opened or closed discussions: #18050: Is cmake/macros/macro_define_object_target.cmake unused? (opened) https://github.com/dealii/dealii/issues/18050 #18048: Error in step-90 with degree 2 (opened) https://github.com/dealii/dealii/issues/18048 #18046: Wiki - Contributing (opened) https://github.com/dealii/dealii/issues/18046 #18043: Remove redundant information from portable matrix-free infrastructure (opened) https://github.com/dealii/dealii/issues/18043 #18037: New page scaling in documentation. (opened and closed) https://github.com/dealii/dealii/issues/18037 #18034: Compile warnings with bundled tbb and gcc-14.2 (opened) https://github.com/dealii/dealii/issues/18034 #18032: Deprecated header warning with CGAL 6.0.1 (opened) https://github.com/dealii/dealii/issues/18032 #18025: Condition complex overloads on the types actually being different. (opened) https://github.com/dealii/dealii/issues/18025 #18021: LA::parallel::Vector on scaling *= is not checking if buffers are empty (opened) https://github.com/dealii/dealii/issues/18021 #18005: Rename ReferenceCell::unit_tangential/normal_vectors(const unsigned int face). (closed) https://github.com/dealii/dealii/issues/18005 #17807: `Parameterhandler::print_parameters`: wrong indentation (closed) https://github.com/dealii/dealii/issues/17807 #17762: IndexSet should not have a pop_back()/pop_front() function (closed) https://github.com/dealii/dealii/issues/17762 #17251: Formatting numbers in SolverControl. (closed) https://github.com/dealii/dealii/issues/17251 #15333: Check for typos as part of the CI (closed) https://github.com/dealii/dealii/issues/15333 #8274: Linking warning when building the deal.II dmg package (closed) https://github.com/dealii/dealii/issues/8274 #2728: Mac OS X packages do not include source files (closed) https://github.com/dealii/dealii/issues/2728 A list of all major changes since the last release can be found at https://www.dealii.org/developer/doxygen/deal.II/recent_changes.html. Thanks for being part of the community! Let us know about questions, problems, bugs or just share your experience by writing to dealii@googlegroups.com, or by opening issues or pull requests at https://www.github.com/dealii/dealii. 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