Jump onto windows. Go into the `irb`. ``` irb(main):001:0> puts 0.00001 1.0e-005 ``` Now, get on a mac. Go into the `irb`. ``` irb(main):001:0> puts 0.00001 1.0e-05 ``` Three digit versus two digit defaults for exponents. I hate sounding like a hobgoblin, but I really want the same results on different platforms without jumping through extra hoops. Arrg.