We need to see ⎕IO

Speaking for myself only, trivial questions are very welcome!

Blake


*Blake McBride*

www.arahant.com
Cell:  615-394-6760




On Mon, Mar 9, 2015 at 8:55 PM, Christian Robert <
[email protected]> wrote:

> I do not understand why assigning a scalar to several index in a matrix
> fail
>
> Xtian.
>
> ps: there should be a gnuapl users group somewhere where I can ask trivial
> questions like this one
>     if not, someone should create one.
>
>
>
>      ]boxing 8
>       a
> ┌→─────────────────────┐
> ↓                      │
> │ 5 3 0   0 7 0  0 0 0 │
> │ 6 0 0   1 9 5  0 0 0 │
> │ 0 9 8   0 0 0  0 6 0 │
> │                      │
> │ 8 0 0   0 6 0  0 0 3 │
> │ 4 0 0   8 0 3  0 0 1 │
> │ 7 0 0   0 2 0  0 0 6 │
> │                      │
> │ 0 6 0   0 0 0  2 8 0 │
> │ 0 0 0   4 1 9  0 0 5 │
> │ 0 0 0   0 8 0  0 7 9 │
> │                      │
> └──────────────────────┘
>       ⍴a
> ┌→────┐
> │13 22│
> └─────┘
>       a[1;]←'x'
>       a[1;]←' '
>       a[1 5 9 13;]←'─'
> INDEX ERROR
>       a[1 5 9 13;]←'─'
>       ^           ^
>       ⍴a
> ┌→────┐
> │13 22│
> └─────┘
>       I do not understand why assigning a scalar to several index in a
> matrix fail
>
>
>

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