Eqnedit64 for Python

Source version: 3.1.4 (review candidate; released version remains 3.1.3).

Candidate native OOXML export: Eqnedit64.exe equation.tex equation.pptxmath. The checked Python helper is eqnedit64.export_powerpoint_math(tex, output). The optional radia-mcp adapter assembles Markdown decks with native editable math; missing/old backends and unsupported input raise. See the native product's docs/POWERPOINT_MATH.md for the format, supported subset and validation limits. This candidate has not passed the isolated PowerPoint release gate and is not published.

eqnedit64 packages the same TeX-first equation engine and standalone Windows application maintained in the Radia monorepo. The signed one-file Eqnedit64.exe is the canonical editor and command-line converter and remains available separately from GitHub Releases. It does not require Python.

python -m pip install eqnedit64
eqnedit64

The direct native command-line converter always takes one input and one output: Eqnedit64.exe INPUT OUTPUT. The package's eqnedit64 console command is an optional launcher for the bundled copy of that same EXE, not another CLI and not a pybind11 surface. The input is a UTF-8 TeX file or clipboard; the output is office, slides, clipboard-png, or a .png / .emf file path. The old CLI output word png and the compatibility switches are rejected with exit code 94. Use clipboard-png for clipboard PNG or a .png file path. The descriptive destinations powerpoint / word and google-slides remain supported.

Eqnedit64.exe equation.tex office
Eqnedit64.exe equation.tex equation.png
Eqnedit64.exe clipboard clipboard-png

After a wheel install, replacing Eqnedit64.exe above with eqnedit64 runs the packaged copy with the same arguments.

The wheel provides:

• eqnedit64.Equation for structural editing, Tab-slot traversal, undo/redo, Backspace, multiline equations, and arbitrary matrix growth;
• tex_to_svg, tex_to_mathml, tex_normalize, palettes, and shortcuts;
• copy_equation() and render_equation() as thin subprocess users of the bundled native CLI;
• the Radia-owned browser editor assets through web_asset();
• the bundled standalone application through the eqnedit64 console command.

Only UTF-8 TeX is a source format. Current wheels target 64-bit Windows and Python 3.10 or newer.

The wheel embeds the signed executable produced for the matching eqnedit64-v3.1.3 GitHub Release; it does not build a second application implementation. The package is BSD 2-Clause licensed. The embedded Eqnedit Math font is a TrueType-outline derivative of Latin Modern Math under the GUST Font License. Its license and derivation manifest are included in the wheel.

3.1.2 PowerPoint colour limitation (UXP-0030/0031)

PowerPoint import drops colour on the shared conditional OMML CF_HTML route in both editions. The user measured all r10 colour variants A–G as not red on 2026-10-08 and approved releasing 3.1.2 with this documented limitation. Colour support remains enabled in the native/Web canvas, SVG, saved TeX, and native EMF/DIB output. This decision does not strip colour from the source or renderer. PowerPoint colour retention is not an acceptance requirement for this release.

User hand tests: H1/H5/H6 EXE OK on ea787664d; H7 EXE canvas red, PowerPoint not red. Web H5/H6 OK on 8361ec916. Historical CI 37692902458 compared 22/22 primary OMML branches at ea787664d; its Web side used the headless browser clipboard, not the OS clipboard. This supports the UXP-0031 EXE-test plus bit-gate qualification for the covered corpus; it does not prove every TeX input or every Office/browser environment. Changed payload behaviour requires renewed qualification. The completed 3.1.3 publication record is in the canonical handover.

3.1.3 release and coverage limits

Version 3.1.3 is released. The 52-fixture Office corpus has 49 covered native/Web primary OMML branches that are byte-identical. Headed full Chromium run 37721927723 verified Web OS-clipboard writes, styles and functions on 25fca594e. The user accepted six signed-candidate retests, including function arguments and upright/bold styles. Qualification applies to the covered corpus.

Three constructs remain non-covered: native \boxed and \binom drop the unsupported command, and native \cancel emits a bottom bar instead of Web's diagonal strike. They are not passes and do not qualify for Web hand-test exemption. Bare functions may have empty OMML arguments; sin 2x collects only 2. PowerPoint colour loss on the shared OMML route remains a known limitation. Full arbitrary-TeX or Office/browser parity is not established.

PowerPoint normal paste

Ctrl+V must produce editable inline m:oMath on the slide (no m:oMathPara there), left aligned, with 18 pt equation, trailing character and insertion point in a blank presentation. EXE/Web put RichEdit OMML in the CF_HTML msEquation block as the primary payload, with MathML only as fallback. Test Application.CommandBars.ExecuteMso("Paste"), never substitute Shapes.Paste(). Refuse attachment to user processes, inspect saved OMML/rendering, restore clipboard and close owned resources only. Slides image copy remains 300 dpi / 24 pt.