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Re: (2/3)[[1]]

obott0 at wrote:
> I'm not sure if this has been asked before, but why can't Part be used
> with Rational?
> i.e. (2/3)[[1]]
> Thanks.
Internally, Mathematica considers rational numbers to be atomic objects 
- they only print in a way that makes them look otherwise. You will find 
that Complex[2,3] behaves in the same way for the same reason.

David Bailey

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