From: "Bartosz Dziewoński" <matma.rex@...>
Date: 2012-01-26T04:04:19+09:00
Subject: Re: Microrant on Ruy's Math Skills

Generally, you should use ratio instead of difference when comparing
floats, but in many cases - such as the time one provided by Alex - a
difference is obviously a better idea.

There is no silver bullet, just use whatever works for you in a particular case.

-- Matma Rex