[quote name='clb' timestamp='1340030371' post='4950265']
[quote name='alvaro' timestamp='1340027618' post='4950243']
Third and fourth cases will break if a == b.
Heh, was so fixed on the IEEE peculiarities, that didn't even consider the natural reasons [img]http://public.gamedev.net//public/style_emoticons/default/smile.png[/img]
Hmmm, sorry about that. I forgot to mention a != b and are both finite.
I did some tests and some equations can indeed be untrue for large values of a and b.