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+% (C) Lars Madsen, daleif@imf.au.dk, 2014/08/04
+% This material is subject to the LaTeX Project Public License.
+% See http://www.ctan.org/tex-archive/help/Catalogue/licenses.lppl.html
+% for the details of that license.
+
+
+This small package use the pgfkeys pacakge to solve the problem of
+using the ]a,b[ syntax for indicating an open interval. Instead of
+having to type this as \mathopen{]}a,b\mathclose{[} users can simply
+use
+
+ \interval[open]{a}{b} (= ]a,b[ with proper spacing)
+
+Other usages include
+
+ \interval[open left]{a}{b} (= ]a,b])
+ \interval{a}{b} (= [a,b])
+
+We also provide a simple interface to switch to the more convenient
+(a,b) tradition for specifying an open interval.
+
+See the manual for details.
+
+* v0.2: typo in manual
+* v0.3: added the colorize option
+