> > It definitely makes sense for a range.
Sorry... gotta disagree... mathematical set notation is more appropriate, especially for scientific computing. This is coming from a former matlab user, btw, so it's not like I was confused by the syntax. The "for i = 1:5" syntax is actually more reminiscent of C: "for (int i=1; i<=5; i++)", and I'm guessing that the syntax originated more from that rather than scientific concepts. On Tue, Oct 27, 2015 at 11:58 AM, feza <mohamad...@gmail.com> wrote: > +1 @Tom Breloff . > I was confused about this when starting out. Comparing `for i in 1:3` vs > `for i = 1:3`, even though I regularly use matlab if you think about it > for `i = 1:10` doesn't really make a lot of sense. It would be nice if it > was just one way as opposed to the confusion about whether = or in should > be used. > > On Tuesday, October 27, 2015 at 10:26:44 AM UTC-4, Tom Breloff wrote: >> >> It's harmless, sure, but I would prefer that everyone uses "in" >> exclusively so that there's one less thing to waste brainpower on. You >> don't say "for each x equals the range 1 to n", you say "for each x in the >> range 1 to n". I don't think "=" has a place here at all except to allow >> copy/pasting of Matlab code (which creates other performance problems >> anyways). >> >> On Tue, Oct 27, 2015 at 10:04 AM, Stefan Karpinski <ste...@karpinski.org> >> wrote: >> >>> My general approach is to only use = when the RHS is an explicit range, >>> as in `for i = 1:n`. For everything else I use `for i in v`. I would be ok >>> with dropping the = syntax at some point, but it seems pretty harmless to >>> have it. >>> >>> On Tue, Oct 27, 2015 at 8:56 AM, FANG Colin <coli...@gmail.com> wrote: >>> >>>> Thank you. In that case I will happily stick with `in`. >>>> >>>> >>>> On Monday, October 26, 2015 at 8:43:22 PM UTC, Alireza Nejati wrote: >>>>> >>>>> There is no difference, as far as I know. >>>>> >>>>> '=' seems to be used more for explicit ranges (i = 1:5) and 'in' seems >>>>> to be used more for variables (i in mylist). But using 'in' for everything >>>>> is ok too. >>>>> >>>>> The '=' is there for familiarity with matlab. Remember that julia's >>>>> syntax was in part designed to be familiar to matlab users. >>>>> >>>>> On Tuesday, October 27, 2015 at 8:26:07 AM UTC+13, FANG Colin wrote: >>>>>> >>>>>> Hi All >>>>>> >>>>>> I have got a stupid question: >>>>>> >>>>>> Are there any difference in "for i in 1:5" and "for i = 1:5"? >>>>>> >>>>>> Does the julia community prefer one to the other? I see use of both >>>>>> in the documentations and source code. >>>>>> >>>>>> Personally I haven't seen much use of "for i = 1:5" in other >>>>>> languages. >>>>>> >>>>>> Thanks. >>>>>> >>>>> >>> >>
