Re: [boost] [mpl-cf] [RFC] MPL Real Numbers using Continued Fractions

Subject: Re: [boost] [mpl-cf] [RFC] MPL Real Numbers using Continued Fractions
From: Mathias Gaunard (mathias.gaunard_at_[hidden])
Date: 2010-11-29 05:07:02

On 28/11/2010 22:30, Hal Finkel wrote:
> Hello,
>
> A few months ago, I created an MPL extension type for representing real
> numbers.

I find that idea very interesting.

> The current default is 20 to allow an effective
> precision near that of a double. Also, continued fractions, being "based
> on" rational numbers, can exactly represent any rational (for example,
> 1/3) so the computations can be more accurate than those using a
> floating-point representation.

It would be nice to know what minimum value is necessary to provide 
correctly rounded results for IEEE754 floats and doubles.