Skip to content

History / Extending hi_class

Revisions

  • Ready the wiki for the v3.3.4.4 release Checked every page against what is actually public now, not against the devel branch it was written for. The substantive fix is the Python module: the released code builds `hiclassy` with a `HiClass` object (python/hiclassy.pyx, Makefile target `hiclassy`) and provides no `classy` module at all, so every `from classy import Class` on the wiki was about to document an import that does not exist. Python-wrapper.md and Installation.md now use hiclassy throughout, the PyPI section no longer claims the import name differs from the local build, and the samplers note says plainly that anything importing `classy` needs pointing at `hiclassy`. Also corrected against the released tree: - PyPI is an sdist, not a wheel: pip compiles the C code locally. The old text promised an install "without compiling anything locally". - `pip install hiclassy` no longer needs numpy and scipy spelled out; they are declared from 3.3.4.3 on. - the zip link pointed at archive/hi_class.zip, a branch that no longer exists -> the v3.3.4.4 tag archive - `mkdir -p output` dropped from the quick starts: output/ now ships - version lines -> hi_class v3.3.4.4 (built on CLASS v3.3.4) - Home.md logo now comes from the repository, not miguelzuma.github.io - the cccg worked example links to commit 31382d65 in the public repository, where it is now reachable, instead of naming a devel commit PUBLISHING.md removed as the release-day step says; it is preserved in this history and copied to ~/code/hi_class_notes/code_worklog/wiki_PUBLISHING.md. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QY2a7349dKv2NdiDi2aDJx

    @miguelzuma miguelzuma committed Aug 25, 2026
  • Write out the Horndeski and GLPV Lagrangians The covariant page named G2...G5 in every model section without ever saying what they multiply, so a reader could not check a model's Lagrangian against a paper, or against their own. It now carries the action and L2...L5 in the conventions of the code paper (1605.06102 eqs 2.1-2.5), the M*^2 definition, and the note that the G's already carry 1/8*pi*G_N -- which is why every G4 on the page starts from 1/2. The beyond-Horndeski section gains the two GLPV terms it was already discussing, from Traykova, Bellini & Ferreira (1902.10687 eq 2.2), in the same normalisation. These are the first equations in the wiki. GitHub renders $$ blocks with KaTeX in wikis as well as in Markdown; each block was checked against KaTeX (and LaTeX) before committing, and PUBLISHING.md now says to look at the rendered section once after the release force-push. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QY2a7349dKv2NdiDi2aDJx

    @miguelzuma miguelzuma committed Aug 24, 2026
  • Rename Models pages to colon-free filenames GitHub's markdown renderer parses a colon in a relative link target as a URI scheme and sanitizes the link away, so [x](Models:-Covariant-theories) rendered as plain text. Pages renamed to Covariant-theories, Parametrized-alphas, Expansion-history; all internal references updated. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

    @miguelzuma miguelzuma committed Aug 20, 2026
  • Rebuild the wiki for the next release Written against devel hi_class @ 90e58bcd (shooting fix, smg precision defaults, BD attractor IC, cccg_exp): all 13 gravity_models/*.ini verified to run out of the box before documenting them as such. New pages: Home, Installation, Running-hi_class, Models (covariant / parametrized-alphas / expansion-history), Output-files, Stability-and-precision, Python-wrapper, Extending-hi_class, Physics-and-papers, plus sidebar and footer. Every parameter name, option string, default and formula was checked against the source; first written documentation of gravity_submodel, wowa_w and the output_background_smg column map. The 2017 CLASS-internals pages are dropped (the CLASS wiki is linked instead). PUBLISHING.md holds the release-day push instructions and is not a wiki page. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

    @miguelzuma miguelzuma committed Aug 20, 2026