visionmedia/should.js — pull request #86 by titarenko (2012-09-21 22:28:49+00:00)
Title: Added #approximately(value, delta, desc) for comparison of numbers within given precision

It's quite handy to have something like this:

(3/4*Math.cos(0)).should.be.approximately(0.75, 1e-2);

But at the moment I haven't found such possibility in should.js. So, since I like this library and don't want to switch to another one, please, accept these changes and merge them into master to be released (I hope) soon.