float equality

[Walter Bright]

Kevin Bealer wrote:
> == Quote from Walter Bright (newshound2 at digitalmars.com)'s article
>> Kevin Bealer wrote:
>>> You could switch to this:
>>>
>>> struct {
>>>     BigInt numerator;
>>>     BigInt denominator;
>>> };
>>>
>>> Bingo -- no compromise.
>> It cannot represent irrational numbers accurately.
> 
> True but I did mention this a few lines later.

I guess I'm not seeing the point of representing numbers as ratios. That works 
only if you stick to arithmetic. As soon as you do logs, trig functions, roots, 
pi, etc., you're back to square one.