Re: Float numbers equality.
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- Subject: Re: Float numbers equality.
- From: Luiz Henrique de Figueiredo <lhf@...>
- Date: Fri, 9 Aug 2013 19:18:52 -0300
> function float_equal(lhs, rhs, epsilon)
> return math.abs(lhs - rhs) < epsilon
> end
As mentioned before, if you have to do this, you need to use *relative* error,
not absolute error:
return math.abs(lhs - rhs) < epsilon*rhs
Floating-poin numbers are not distributed uniformily in their range;
there's lot of clustering and empty intervals, due to scaling.