I think that I know that :) And this is why I mentioned that if you print 1/3 it prints (1/3) so that we can continue typing + (2/3)
On Mon, Dec 19, 2016 at 11:02 PM, Sven Van Caekenberghe <[email protected]> wrote: > > > On 19 Dec 2016, at 22:00, Stephane Ducasse <[email protected]> > wrote: > > > > Hi serge > > > > the printing should be normal because like that you are ready to type > > 1/3 + 2/3 and get 1. > > No, not at all: > > 1/3 + 2/3 > > "(7/9)" > > These are all just binary messages evaluated left to right, like this: > > ((1/3) + 2)/3 > > "(7/9)" > > That is why you need the parenthesis in certain contexts. > Now adding two of them is definitively wrong. > > (1/3) + (2/3) > > "1" > > (The first parenthesis are not needed, btw). > > > Now I do not get why you get ((1/2)) thanks for reporting it. > > > > Stef > > > > On Mon, Dec 19, 2016 at 9:08 AM, Serge Stinckwich < > [email protected]> wrote: > > I have one question about Fraction. > > > > When I print a fraction like 1/2 in the Playground I obtain (1/2) and > > when I inspect I obtain ((1/2)). Why do we need all these parentheses > > ? > > > > I didn't try with a current Pharo 6.0 image, because my bandwidth is > > quite limited right now (Vietnam). > > > > -- > > Serge Stinckwich > > UCBN & UMI UMMISCO 209 (IRD/UPMC) > > Every DSL ends up being Smalltalk > > http://www.doesnotunderstand.org/ > > > > > > >
