> On 16 Apr 2018, at 12:57, Julien <julien.delplan...@inria.fr> wrote: > > Hello, > > Then this should be added to Integer class as well no? > > So the API is uniform.
Probably yes. > Because, if I am not wrong, for now if you want to generate an integer that > could be negative you have to use an Interval > > (-10 to: 10) atRandom > > Since > > 10 atRandom > > In fact generates a Natural number and not an Integer… :-) Indeed > > Julien > > --- > Julien Delplanque > Doctorant à l’Université de Lille 1 > http://juliendelplanque.be/phd.html > Equipe Rmod, Inria > Bâtiment B 40, Avenue Halley 59650 Villeneuve d'Ascq > Numéro de téléphone: +333 59 35 86 40 > >> Le 16 avr. 2018 à 12:51, Sven Van Caekenberghe <s...@stfx.eu> a écrit : >> >> I think >> >> Float randomFrom: -4.1 to: 2.5 >> >> or >> >> Float randomBetween: -4.1 and: 2.5 >> >> would be the most descriptive and compliant to your signature ;-) >> >> An interval does not necessarily contain Floats. >> Going to the class side of Float makes sense because you create a new >> instance. >> >>> On 16 Apr 2018, at 11:51, Serge Stinckwich <serge.stinckw...@gmail.com> >>> wrote: >>> >>> Hi Pharoers, >>> >>> some random musings about Random numbers :-) >>> >>> In the context of the CORMAS project: >>> http://cormas.cirad.fr/indexeng.htm >>> I would like to propose an API for manipulating random numbers >>> to users who are not developers but modelers of complex systems. >>> >>> In CORMAS, people need to generate a lot of random numbers for simulation >>> for exemple. For example, you can do: >>> >>> Cormas randomFloatFrom: -4.1 to: 2.5 >>> >>> At the moment, there is no Pharo API to generate with a one-liner a random >>> float number between two values for example. >>> >>> You can do this for integers: 10 atRandom to generate an integer between 1 >>> to 10. >>> >>> There is atRandom defined on Interval, so can you say : >>> (2.3 to: 4.5) atRandom >>> but it will not generate a random float numbers between 2.3 and 4.5 >>> >>> but numbers like: 2.3, 3.3 or 4.3. >>> because Interval are considered as a Collection. >>> >>> Any comments about that ? >>> How we can enhance the situation ? >>> Any interest to introduce a method to produce random float numbers in an >>> interval in Pharo ? >>> >>> Thank you >>> -- >>> Serge Stinckwich >>> UMI UMMISCO 209 (SU/IRD/UY1) >>> "Programs must be written for people to read, and only incidentally for >>> machines to execute." >>> http://www.doesnotunderstand.org/ >> >> >
