[Jprogramming] generate integers from a to be with a step

['Michael Day' via Programming]

I was thinking that i: with a complex argument would get you there, eg:

     5+i:2 2j2

3 4 5 6 7

3 5 7 5 5   NB. why the trailing 5s?


but bending it to your wishes looks a bit tricky.


I vaguely recalled there was a utility verb, "steps."  I've found it in 
various addons;

I think it's in one of the standard libraries, too:


    steps=: {. + (1&{ - {.) * (i.@>: % ])@{:
    steps 3 7 2
3 5 7
    steps 3 7 3
3 4.33333 5.66667 7


I see someone else has just posted,  but I'll send this anyway,  having 
spent a few minutes on it!


Cheers,


Mike


On 29/03/2020 10:52, Rudolf Sykora wrote:
> Dear all,
>
>
> how do you usually generate a sequence of integers from 'a' to 'b' with
> a step 's'?
>
> If I ignore the step, yesterday I wrote
>
>     interval=.{.+(i. @ >: @ ({:-{.))
>     interval 5 19
> 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
>
> but that seems overly complicated...
> Then I can include the step in this way
>
> _3 {.\ interval 5 19
> 5 8 11 14 17
>
> Putting the two parts together would make it even more complicated.
> There must be a better way...
>
>
> Thanks
> Ruda
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