# CTAN Update: interval

Date: March 7, 2019 6:40:53 PM CET
Lars Madsen submitted an update to the interval package. Version: 0.4 2019-03-06 License: lppl1.3 Summary description: Format mathematical intervals, ensuring proper spacing Announcement text:
New in version 0.4: Added \ointerval, \linterval, \rinterval short hands (suggested by Frank Mittelbach). They are just short ways to say, say, \interval[open]{a}{b}, etc. Removed \intervalsetup (now gives an error if used, was set to equal \intervalconfig)
The package’s Catalogue entry can be viewed at https://ctan.org/pkg/interval The package’s files themselves can be inspected at http://mirror.ctan.org/macros/latex/contrib/interval/
Thanks for the upload. For the CTAN Team Petra Rübe-Pugliese
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## interval – Format mathematical intervals, ensuring proper spacing

When typing an open interval as $]a,b[$, a closing bracket is being used in place of an opening fence and vice versa. This leads to the wrong spacing in, say, $]-a,b[$ or $A\in]a,b[=B$. The package attempts to solve this using:
\interval{a}{b} -> [a,b]
\interval[open]{a}{b} -> ]a,b[
\interval[open left]{a}{b} -> ]a,b]

The package also supports fence scaling and ensures that the enclosing fences will end up having the proper closing and opening types. maths does not do this job properly.

The package depends on pgfkeys.

 Package interval Version 0.4 2019-03-06 Maintainer Lars Madsen

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