Hi nicolas
So what is the solution? We can integrate fast a solution.
I would really like to see them fix in Pharo 60.
I'm writing a book for newbie and this is the third time I change one
chapter
so may be I should stop and throw away this chapter.
You see I'm not good in math so even if I try hard I will not have a
good solution.
This is the same for marcus and most people in our team.
I reopened these issues.
Stef
2016-10-25 23:22 GMT+02:00 stepharo <[email protected]
<mailto:[email protected]>>:
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 , [email protected]
<mailto:[email protected]> 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
<http://www.smalltalkhub.com/#%21/%7Ephilippeback/HOExtras>
Printf
I am just used to C printf and well, I like the way it works.
Phil
