Changelog

All notable changes to ParSub. Versions follow Semantic Versioning.

0.2.1 — 2 October 2026

Packaging and documentation release; ParSub’s code is unchanged from 0.2.0 (PyPI page, GitHub release).

• Docker image of the REST API: ghcr.io/psubrat29/parsub for amd64 and arm64, built, tested and published by GitHub Actions; tags 0.2.1, 0.2 and latest.
• compose.yaml to start the API with docker compose up -d, and a new Docker page.
• The PyPI page now shows the current README, with links to the website, the Docker image and the changelog.
• Release workflow: TestPyPI rehearsals can be repeated (unique .devN versions), PyPI uploads check the version first, and every upload is followed by installing it from the index.

0.2.0 — 2 October 2026

First release on PyPI: pip install parsub (PyPI page, GitHub release).

Working pipeline

• LaTeX parsing with pylatexenc: inline and display math, align-like environments split into lines, equation labels, prose context, side conditions such as (\Re(z) > 0) turned into sampling ranges, statements such as g = 9.81 used as parameter values.
• Strict LaTeX → SymPy conversion: a formula is converted completely or reported, never truncated.
• Goal detection from the prose: evaluate, plot, solve, optimize, integrate, differentiate, series, verify, symbolic.
• Self-contained generated scripts: one editable function per task, isolated with time limits, 300 DPI plots, CSV/TSV/Excel/JSON data and summary.json.
• Command line (parsub analyze / run / demo / version), Python API (parsub.analyze_latex) and REST API (parsub-api) with sandboxed paths and POST /run.

Mathematics

• Special-function notation: {}_pF_q(a; b; z), Pochhammer (a)_n, Laguerre/Gegenbauer/Jacobi polynomials, Bessel functions J_\nu(x), indexed functions w_{\alpha}(z), primes w''(z).
• The document’s own definitions are applied: function definitions are substituted where the function is used, parameter definitions give consistent values, i = \sqrt{-1} is honoured.
• Identities, repeated definitions of a function and differential equations are verified numerically, with a verdict, the agreeing points and where they disagree.
• Validated on the example paper: 19 of 22 identities confirmed, two misprints found (see the validation report).

Project

• Documentation and website at https://psubrat29.github.io/parsub/
• Automated tests on Python 3.9, 3.11 and 3.13; automated website checks; PyPI releases with Trusted Publishing and a post-upload installation test.

0.1.0 — June 2026

Initial prototype, published as a GitHub tag only (not on PyPI). Its parser did not extract any expressions and the generated code did not run; 0.2.0 replaces it completely.