[R] acos(0.5) == pi/3 FALSE

[David Barron]

If you had looked at help("==") you would have seen the following:

For numerical and complex values, remember == and != do not allow for
the finite representation of fractions, nor for rounding error. Using
all.equal with identical is almost always preferable.

Then if you had tried

> all.equal(acos(0.5),pi/3)
[1] TRUE


On 18/09/06, Iñaki Murillo Arcos <inaki.murillo at ehu.es> wrote:
> Hello,
>
>   I don't know if the result of
>
>   acos(0.5) == pi/3
>
> is a bug or not. It looks strange to me.
>
>    Inaki Murillo
>
> ______________________________________________
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> and provide commented, minimal, self-contained, reproducible code.
>


-- 
=================================
David Barron
Said Business School
University of Oxford
Park End Street
Oxford OX1 1HP