CTAN has a new package: constants

[CTAN Announcements]

The package below has been installed at tug.ctan.org and should soon
be at your local mirror.

Thank you,
Jim Hefferon
Saint Michael's College

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The following information was provided by our fellow contributor:

Name of contribution: constants
Author's name: Antoine Lejay
Location on CTAN: /macros/latex/contrib/constants
Summary description: a package for automatic numbering of constants 
  with a label/ref mechanism
License type: lppl

Announcement text: 
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This set of macros aims to provide a way to number automatically 
constants in a mathematical proof with a system for labelling/referencing. 
In addition, several families of constants (with different symbols) may be 
defined.
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This package is located at 
   http://tug.ctan.org/tex-archive/macros/latex/contrib/constants
.  More information is at
   http://tug.ctan.org/pkg/constants
(if the package is new it may take a day for that information to 
appear).  We are supported by the TeX Users Group http://www.tug.org .  
Please join a users group; see http://www.tug.org/usergroups.html .