intexgral – A LaTeX package for typesetting integrals

Description

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.

For instance, consider this code:

\begin{equation}
  \int_0^R \rho \mathrm{d}\rho \int_0^H z \mathrm{d}z \int_0^{2\pi} \phi \mathrm{d} \phi
\end{equation}

can easily be rewritten like so:

\begin{equation}
  \integral[int-split=true,limits={0, R; 0, H; 0, 2\pi}, variable={\rho, z,\phi}]{\rho; z;\phi}
\end{equation}

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

• \NewLimitsKeyword (and its variant) to associate keywords with common limits.
• \NewDifferentialKeyword (and its variant) to associate keywords to common lists of differential (and Jacobian).
• \differentials to precisely place the differentials wherever the user wants to.
• \defaultdiff & \defaultvdiff for changing the default differential.

and much more... See the documentation for exhaustive presentation of all the features along with examples.

Author

This package is maintained by Valentin Dao: vdao.texdev@gmail.com

Contribution: Anthony Saint-Criq

License

Released under the LaTeX Project Public License v1.3c or later.

This work has the LPPL maintenance status maintained.

Files

The bundle contains the following files:

README.md                   This file.
intexgral.ins               The installation file.
intexgral.dtx               The source file, along with the derived files:
- intexgral-doc-en.pdf      The english package documentation in PDF format.
- intexgral-doc-fr.pdf      The french package documentation in PDF format.