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Re: decimal to fraction

by Laurent_R (Canon)
on Sep 24, 2017 at 11:48 UTC ( [id://1199989]=note: print w/replies, xml ) Need Help??


in reply to decimal to fraction

The same with Perl 6: 
> say 0.421875.nude
(27 64)
>

[download]
Note: nude stands for numerator-denominator.

Replies are listed 'Best First'.
Re^2: decimal to fraction
by no_slogan (Deacon) on Sep 24, 2017 at 15:30 UTC 
    > 0.49420098210293.nude
(49420098210293 100000000000000)
> 0.49420098210293.Num().Rat(1e-15).nude
(463051 936969)

    [download]
    Yay Perl6. Took me a while to figure out the magic incantation, because the Perl6 documentation is nigh incomprehensible. Also, Rat() ignores the epsilon parameter if it's called on a rational. Sometimes, you'd like to find a fraction that's an approximation of another fraction without mashing it down to a float first.
[reply]
[d/l]

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