# CTAN Update: mathtools

Date: May 25, 2017 5:58:06 PM CEST
Lars Madsen submitted an update to the mathtools bundle. Version: mathtools: 1.19 2017-05-24 empheq.xml: 2.15 2017-03-31 mhsetup.xml: 1.3 2017-03-31 License: lppl1.3 Summary description: Mathematical tools to use with amsmath Announcement text:
Since the last release (2015) the following issues have been addressed: * Changed amsmath requirement to 2016/11/05 (in order to use the aligned fix) * Applied the amsmath aligned fix to multlined, now the left part aligned correctly. Reported by campa in a note to <https://tex.stackexchange.com/a/369212/3929> * Reimplemented \DeclarePairedDelimiter and friends to fix the following problem: \mathclose{\rvert}^2 vs \mathclose\rvert^2 They might not give the same result (depending on the font setup). Thus the internal wrappers need to be changed into three branches: star, nostarnonscaled, nostarscaled, where the difference between the last two is whether or not braces are applied to the fences. This problem was reported in <https://tex.stackexchange.com/q/364308/3929> * Since we were cleaning up \DeclarePairedDelimiter and friends, \DeclarePairedDelimiterX is now implemented as a call to \DeclarePairedDelimiterXPP with empty pre- and postcode. * The \DeclarePairedDelimiter(X,XPP) reimplementation removes a grouping issue reported in <https://tex.stackexchange.com/q/366665/3929> * Since there is no longer any nostar wrapper branch, redeclaring the nostar wrapper will now give an error. * Removed -\jot from the multlined implementation (invisible line). Issue reported in at least <http://tex.stackexchange.com/a/258162/3929> and <https://tex.stackexchange.com/q/369156/3929>. It is not 100% correct, but better than with -\jot. * Fixed bug in empheq in relation to AMS clases * Renamed macros in mhsetup, mathtools and empheq such that any xxx_yyy: macro should now contain EQ, MH or HT as a prefix or infix. Thus making everyting truely separate from expl3 defined syntax. * Changed \shortintertext such that as long as 'original-intertext=false' (the default), \shortintertext now only work in the same context as \intertext * \shortintertext is now also an error inside the empheq construction * Sporadic space fixed in \noeqref, reported by Christian Vetter (private email) * Added \ignorespaces after \noindent (intertexts), bug inherited from amsmath
The package’s Catalogue entry can be viewed at https://ctan.org/pkg/mathtools The package’s files themselves can be inspected at http://mirror.ctan.org/macros/latex/contrib/mathtools/
Thanks for the upload. For the CTAN Team Petra Rübe-Pugliese
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## mathtools – Mathematical tools to use with amsmath

Mathtools provides a series of packages designed to enhance the appearance of documents containing a lot of mathematics. The main backbone is amsmath, so those unfamiliar with this required part of the system will probably not find the packages very useful.

Mathtools provides many useful tools for mathematical typesetting. It is based on amsmath and fixes various deficiencies of amsmath and standard . It provides:

• Extensible symbols, such as brackets, arrows, harpoons, etc.;
• Various symbols such as \coloneqq (:=);
• Easy creation of new tag forms;
• Showing equation numbers only for referenced equations;
• Extensible arrows, harpoons and hookarrows;
• Starred versions of the amsmath matrix environments for specifying the column alignment;
• More building blocks: multlined, cases-like environments, new gathered environments;
• Maths versions of \makebox, \llap, \rlap etc.;
• Cramped math styles; and more...

Mathtools requires mhsetup.

 Package mathtools Version 1.24 2020-03-24 Copyright 2002–2011 Morten Høgholm2012–2019 Lars Madsen2020 Lars Madsen, The LaTeX3 Project Maintainer The LaTeX TeamLars MadsenMorten Høgholm (inactive)Will Robertson (inactive)Joseph Wright (inactive)

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