# CTAN Update: nicematrix

Compatibility with the classes revtex4-1 and revtex4-2. Option allow-duplicate-names.

The package’s Catalogue entry can be viewed at https://ctan.org/pkg/nicematrix The package’s files themselves can be inspected at http://mirror.ctan.org/macros/latex/contrib/nicematrix/

Thanks for the upload. For the CTAN Team Petra Rübe-Pugliese

We are supported by the TeX users groups. Please join a users group; see https://www.tug.org/usergroups.html .

## nicematrix – Several features to improve the typesetting of mathematical matrices with TikZ

This package provides new environments similar to the environments
`matrix`, `pmatrix`, `bmatrix`, etc.
of amsmath and mathtools.

In these new environments, a TikZ node is created for each cell of the matrix.

The user can use these nodes directly but `nicematrix`
also provides commands which use these nodes to draw continuous
dotted lines from two cells of the matrix (the result is more
aesthetic than the classical result obtained using
`\cdots`, `\vdots`, `\ddots`, etc.).

This package also provides a control over the width of the columns and the possibility to add an exterior line and an exterior column.

`nicematrix` requires and loads
amsmath,
array,
expl3,
l3keys2e,
xparse,
tikz,
as well as the TikZ library `fit`.

Package | nicematrix |

Version | 3.1 2019-09-04 |

Copyright | 2017–2019 F. Pantigny |

Maintainer | François Pantigny |