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Apr 13, 2017 at 12:58 history edited CommunityBot
replaced http://mathoverflow.net/ with https://mathoverflow.net/
Mar 10, 2017 at 9:42 history edited CommunityBot
replaced http://conan777.files.wordpress.com/ with https://conan777.files.wordpress.com/
Jun 10, 2015 at 1:49 vote accept Steven Gubkin
Mar 1, 2012 at 22:22 comment added Steven Gubkin @Joseph Excellent! Thanks a lot. @Will Yes that is where I must have seen it.
Mar 1, 2012 at 21:51 comment added Will Jagy page 129, Calculus on Manifolds, by Michael Spivak.
Mar 1, 2012 at 21:26 history answered Joseph O'Rourke CC BY-SA 3.0