# [Pharo-dev] , for vector creation

Tim Mackinnon tim at testit.works
Thu Oct 26 11:53:12 EDT 2017

```This turned into a much more interesting thread than I expected (gosh you learn lots of stuff by reading comments).

But I am impressed that Feenk listened to what people were saying, distilled it down and didn’t take their ball home - thanks guys.

Sometimes in all of these slightly robust conversations I have to keep thinking back to when I went to Pharo days, and how cool it was to see the wonderful things people had produced. It was inspiring….

We have to hold onto that and keep moving the boundaries further without getting disillusioned or blocked.

I’m looking forward to the next Pharo Days where hopefully some of this stuff will be reality.

Tim

> On 26 Oct 2017, at 16:45, Tudor Girba <tudor at tudorgirba.com> wrote:
>
> Thanks everyone for the nice discussion.
>
> So, after all arguments, we will remove Number>>, from Bloc.
>
> I think using Number>>, for vector creation makes quite some sense. However, we have already seen that we have a few places where we have vectors: Bloc, PolyMath and Moose-Algos. The Bloc needs are smaller than the needs from PolyMath (we need only a limited set of abilities). So, until we have one consensus of having one vector in the image, we can leave room for playing.
>
> In the meantime we have:
>
> 1.
> BlVector x: 10 y: 20
> BlVector x: 10 y: 20 z: 30
>
> or:
>
> 2.
> (10 at 20) asBlocVector
> (10 at 20@30) asBlocVector
>
> The 2nd option reads ok, but it has the downside that it needs an extra object (the point).
>
> An interesting thing about Number>>@ is that it is backed by a primitive. This can be quite relevant and I think it would be worthwhile thinking about vector/matrix specific optimizations as well. That is why, in the future, it would be interesting to consider primitives for vector/matrix creation.
>
> Cheers,
> Doru
>
>
>> On Oct 26, 2017, at 5:10 PM, Sean P. DeNigris <sean at clipperadams.com> wrote:
>>
>> Tudor Girba-2 wrote
>>> You mean like sending @ to a number, right? :)
>>
>> Ha ha, you got me ;)
>>
>>
>>
>> -----
>> Cheers,
>> Sean
>> --
>> Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html
>>
>
> --
> www.tudorgirba.com
> www.feenk.com
>
> "Not knowing how to do something is not an argument for how it cannot be done."
>
>

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