JuliaLang/julia — pull request #716 by HarlanH (2012-04-14 16:45:54+00:00)
Title: add isapprox() to base/float and remove approx_eq() from extras/test

uses epsilon to determine default tolerance.
add eps() and isapprox() tests to test/numbers.jl.

See a bit of discussion here:
http://www.johnmyleswhite.com/notebook/2012/04/13/floating-point-arithmetic-and-the-descent-into-madness/comment-page-1/

I'll push docs changes if/when this is pulled.