Re: search for exact number

[bill lam <cbill lam gmail com>]

On Tue, 26 May 2009, Morten Welinder wrote:
> > Will the comparison be tolerant?  That means two numbers are
> > considered equal if their _relative_ difference is smaller than a very
> > small number(eg. 2^-44).
>
> Small range.  (One ulp to either side, give or take.)

Sorry for being dense, what is ulp? Also, is comparison with zero
always intolerant?


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