Bug #3572: mathn causes problems with DateTime http://redmine.ruby-lang.org/issues/show/3572 Author: Kevin Olbrich Status: Open, Priority: Normal ruby -v: ruby 1.9.2dev (2010-07-11 revision 28618) [i386-darwin9.8.0] > require 'date' > DateTime.jd(2_453_827.5) # => #<DateTime: 2006-04-01T12:00:00+00:00 (2453827.0,0,2299161)> > require 'mathn' > DateTime.jd(2_453_827.5) # => SystemStackError: stack level too deep from /Users/username/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/date/format.rb:304 ---------------------------------------- http://redmine.ruby-lang.org