This package defines commands for typesetting math formulae faster and more simply. physics3 is a modularized package, each module provides its own function while physics3.sty itself only provides very few functions. Therefore you can load modules separately after loading physics3.

Modules of physics3 provide the following supports:

• Automatic braces;
• Dirac bra-ket notation;
• Easy way to typeset diagonal matrices and matrices with similar entries;
• Double cross and double dot (binary) operators for tensors;

The issue tracker for physics3 is currently located on GitHub.

Copyright (C) 2026 by Mingyu Xia <myhsia@outlook.com>

Copyright (C) 2022-2024 by Tingxuan Zhang <alphaztx@163.com>

This work may be distributed and/or modified under the conditions of the LaTeX Project Public License (LPPL), either version 1.3c of this license or (at your option) any later version. The latest version of this license is in

http://www.latex-project.org/lppl.txt

and version 1.3c or later is part of all distributions of LaTeX version 2008 or later.

This work has the LPPL maintenance status `maintained'.

The Current Maintainer of this work is Mingyu Xia.