⎕io
┌─┐
│0│
└─┘

my bad,

Forget it

Xtian.


On 2015-03-09 22:03, Blake McBride wrote:
We need to see ⎕IO

Speaking for myself only, trivial questions are very welcome!

Blake


/Blake McBride/
/
/
www.arahant.com <http://www.arahant.com/>
Cell:  615-394-6760




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