Eleanor McHugh wrote:
> On 14 Nov 2009, at 23:40, Marnen Laibow-Koser wrote:
>> It should be fairly clear from the formulae.  One thing that bears
>> repeating, though: never use the default floating-point numbers for
>> math; they're simply not precise enough.  Use integers or BigDecimal.
> 
> 
> That rather depends on the required level of precision...
>

Well, error accumulates pretty quickly in IEEE 754 floats, and 
trajectories require lots of calculation.  I wouldn't trust floats in a 
situation like that -- would you?

> 
> Ellie
> 
> Eleanor McHugh
> Games With Brains
> http://slides.games-with-brains.net
> ----
> raise ArgumentError unless @reality.responds_to? :reason

Best,
--
Marnen Laibow-Koser
http://www.marnen.org
marnen / marnen.org
-- 
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