chebfun/chebfun — pull request #1300 by asgeirbirkis (2014-12-01 19:29:06+00:00)
Title: Writing intervals as [-1,1] rather than [-1, 1] in help text.

Following a survey conducted by @trefethen outside the Andrew Wiles building during a fire alarm evacuation, this should be the way that intervals should be written in our help texts.