# CTAN Update: nicematrix

The code of the extension 'nicematrix' has been optimized. In particular the extension no longer explicitly uses TikZ but only PGF. THE EXTENSION NO LONGER LOADS TIKZ BUT ONLY PGF. The behaviour of the command \rotate is improved when used in the 'last row'. The option 'dotted-lines-margin' has been renamed to 'xdots/shorten' and two options 'xdots/color' and 'xdots/line-style' have been added for a complete customization of the dotted lines. In the environments without preamble ({NiceMatrix}, {pNiceMatrix}, etc.) it's possible to use the options 'l' or 'r' to specify the types of the columns.

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

CTAN is run entirely by volunteers and supported by TeX user groups. Please join a user group or donate to one, see https://ctan.org/lugs

## nicematrix – Improve the typesetting of mathematical matrices with PGF

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

In these new environments, a PGF 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,
pgf,
as well as the TikZ library `fit`.

Package | nicematrix |

Version | 4.1 2020-05-27 |

Copyright | 2017–2020 F. Pantigny |

Maintainer | François Pantigny |