[erlang-questions] erlang float comparison

Angel J. Alvarez Miguel <>
Tue May 15 13:26:26 CEST 2012


On Martes, 15 de Mayo de 2012 12:02:51 Pierpaolo Bernardi escribió:
> On Tue, May 15, 2012 at 11:04 AM, Angel J. Alvarez Miguel <> 
wrote:
> > The problem can be stated as:
> > 
> > Result = case Myfloat > 1.0 of
> >        true -> 1.0;
> >        false MyFloat
> >        end
> > ...
> > ...
> > math:acos(Result).
> > 
> > after that  we came across some values that fail to pass the test > 1.0
> > but are seen as greater to the math:acos function rendering a bad
> > arithmetic expression error
> 
> If true, this indicates a serious bug.  You should report such cases.
> 
> I am somewhat skeptical that such a gross bug would lie undetected so
> far in erlang, so please supply an actual reproducible example.
> 
> Cheers,
> P.
I agree , please let me recheck the whole thing from the very begining.

It starts smelling a bit, like i messed something up...





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