olbrich/ruby-units — pull request #43 by ozzyaaron (2012-05-23 05:24:49+00:00)
Title: Match Math.sqrt to default behaviour with Integers 

I realise that the mathn library changes this, but I think most developers rely on Math.sqrt returning a float like the default math.rb library. As such when we use ruby-unit + other gems that rely on Math.sqrt returning a Float we can get issues (alchemist, or rgeo for example).