Re: guile-question: 3/2 -> "1 1/2"

[Andrew Bernard]

Hi Harm,



User specification of input only guessed at by me. :-)

Of course, for negative and positive input (e.g. -3/2):

(define (mixed-num x)
        (let* ((n (numerator x))
                (d (denominator x)))
        (cons (truncate (/ n d)) (abs (/ (remainder n d) d)))))

But are you saying you also need the function to take any number as input, not 
just a known fraction? Do you really want something like the rationalize 
function ? The common mathematical term for 3 1/2 is mixed number, or mixed 
fraction, by the way.



Andrew


On 12/08/2015 09:09, "Thomas Morley" <address@hidden on behalf of 
address@hidden> wrote:

>
>`mixed-num' can't deal with negative input right now, returning wrong
>(could be fixed ofcourse).
>
>In case the input is not exact `mixed-num' crashes, whereas
>`integer-and-fraction' doesn't, although returning not a fraction.