2016-10-25 23:22 GMT+02:00 stepharo <steph...@free.fr>:
> Ok for the advice
>
> Now round: aNumberOfDigits seems to work fine.
>
> Stef
>
>
No it's not, but issues are timing out too fast ;)
https://pharo.fogbugz.com/f/cases/15471/Can-t-round-Float-fmax-to-2-decimal-places
https://pharo.fogbugz.com/f/cases/15472/Fraction-rounding-to-n-decimal-places-is-inexact
https://pharo.fogbugz.com/f/cases/15473/Float-round-to-n-decimal-places-is-not-in-agreement-with-printShowingDecimalPlaces
I hate to say that, but try in python, they got it right...
> Le 25/10/16 à 11:05, Henrik Johansen a écrit :
>
> +1.
>
> Unless you're dealing with fixed precision* entities, it's usually better
> to specify digits to display in printing methods themselves
> (#printShowingDecimalPlaces: & friends in base image).
> As per previous discussions around this that arise every second year or
> so, rounding the number itself (as long as we're dealing with floats) will
> never work as you want reliably.
>
> Cheers,
> Henry
>
> * And in that case, you'd use ScaledDecimals
>
> On 23 Oct 2016, at 7:08 , p...@highoctane.be wrote:
>
> I use the Printf package for that.
>
> v := 65.456.
> 'With 2 decimal digits: %5.2f, or 3 like this: %6.3f'
> printf: {v. v}.
>
> With 2 decimal digits: 65.45, or 3 like this: 65.456
>
> It is in http://www.smalltalkhub.com/#!/~philippeback/HOExtras
>
> Printf
>
> I am just used to C printf and well, I like the way it works.
>
> Phil
>
>
>
