mathformule

mathformule provides the numbered formule display environment for both single-line and aligned multiline mathematics. Multiline displays may carry one overall equation number or configurable subnumbers on individual rows. They may also be enclosed by an extensible brace on either side, with optional math material outside the brace. Global, per-environment, and per-row spacing corrections are available. If no top-level ampersand is present, multiline rows share a left edge automatically. A leading ampersand is valid, and explicit ampersands retain the conventional right-before/left-after column alignment.

The package does not explicitly require or load an auxiliary package. Its typesetting core uses TeX primitives and LaTeX kernel facilities and does not wrap the equation, align, or aligned environments. It shares LaTeX's standard equation counter and integrates with the usual numbering and cross-reference mechanisms. It is designed to coexist with the principal AMS mathematics and common cross-reference packages.

Version 0.6 is intended for current LaTeX2ε formats and has been verified with pdfLaTeX, XeLaTeX, and LuaLaTeX. It is not a plain TeX macro file.

Files

• README.md: package overview, installation notes, and license statement
• mathformule.sty: package implementation
• mathformule-doc-en.pdf: English manual
• mathformule-doc-en.tex: source of the English manual
• mathformule-doc-zh.pdf: Chinese manual
• mathformule-doc-zh.tex: source of the Chinese manual
• mwe.tex: complete minimal example
• CHANGELOG.md: release history
• LICENSE: complete text of the LPPL 1.3c

Installation

For local use, place mathformule.sty beside the document and load it with:

\usepackage{mathformule}

For a system-wide installation, place the style file under a suitable local TeX tree, for example tex/latex/mathformule/, and refresh the file database when required by the TeX distribution.

Documentation

Build the English manual with pdfLaTeX:

pdflatex mathformule-doc-en.tex
pdflatex mathformule-doc-en.tex

Build the Chinese manual with XeLaTeX and a TeX distribution containing ctex and the Fandol fonts:

xelatex mathformule-doc-zh.tex
xelatex mathformule-doc-zh.tex

The documentation loads additional packages for page layout, links, and Chinese typesetting. They are documentation-only requirements and are not loaded by mathformule.sty.

Compatibility

Version 0.6 has been tested with pdfLaTeX, XeLaTeX, and LuaLaTeX. Tests also cover section- and chapter-based equation numbering, leqno, fleqn, AMS mathematics packages, and common hyperlink and cross-reference packages. No conflict is currently known from the tested combinations, but behaviour in an arbitrary document can still depend on the document class, package versions, and loading order.

Author and license

Copyright (C) 2026 Quan Sun Contact: <rmm74845@gmail.com>

This material is subject to the LaTeX Project Public License, version 1.3c or later. The license text is available at https://www.latex-project.org/lppl/lppl-1-3c/.

The Work, as defined by the LPPL, consists of the files listed in the Files section of this README.

This work has LPPL maintenance status maintained. The Current Maintainer is Quan Sun.

This work is distributed without warranty, to the extent permitted by applicable law.