intexgral

A LaTeX package for typesetting integrals

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--- ## About The Project Typesetting integrals, although common in LaTeX, is not particularly practical. The way in which the different parts are managed often generates unreadable source code, making modifications laborious. The package therefore follows a simple philosophy: focus on the essential element of an integral, the integrand. Everything else (limits, differentials, symbols) can be modified using keys. These keys are designed to allow you to easily and quickly change the style of an integral. Additionally, the package provides various auxiliary macros to support some keys which can have lengthy inputs. > [!IMPORTANT] > Your l3kernel version should be newer than 2024-12-08 ### Built With  ![Static Badge](

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Installation

The latest version can be found on its CTAN page. Simply download the *.dtx files and intexgral.ins file. Then, run

pdf(la)tex|xe(la)tex|lua(la)tex intexgral.ins

and place the resultant .sty file in your working directory or in your texmf tree.

!NOTE
To compile the documentations, you need to run intexgral-fr|en.dtx with LuaLaTeX.

Alternatively, if you're using a TeX distribution, you can run:

For TeXlive

tlmgr install intexgral

For MikTeX

mpm --install=intexgral

Usage

The package provides a central macro \integral that helps typeset integrals. As it only contains one argument, the integrand, its use is heavily dependent of a key=value interface. The latter allows the user to customise many elements of an integral, including:

On the package side

• Adaptation of the style to physics papers convention.
• Selection of the order of limits input.
• Choosing between upright or italic d for differentials.

On the macro side

• Changing the symbol.
• Automate the composition of integrals with limits.
• Fine adjustment of differentials.
• Inclusion of the Jacobian.

The package also offers a couple of auxiliary macros to help enhance the use of some keys:

• \NewLimitsKeyword to associate keywords with common limits.
• \NewVariableKeyword to associate keywords to common lists of differential (and Jacobian).
• \NewSymbolKeyword to associate symbols to user-friendly keys.
• \differentials to precisely place the differentials wherever the user wants to.

For more examples, please refer to the documentation:

• Français → Lire la documentation
• English → Read the documentation