​If you want an array of numbers to align along decimal points you can use
": .

      0j5":at2 /~ i:3
_2.35619 _2.55359 _2.81984 3.14159 2.81984 2.55359 2.35619
_2.15880 _2.35619 _2.67795 3.14159 2.67795 2.35619 2.15880
_1.89255 _2.03444 _2.35619 3.14159 2.35619 2.03444 1.89255
_1.57080 _1.57080 _1.57080 0.00000 1.57080 1.57080 1.57080
_1.24905 _1.10715 _0.78540 0.00000 0.78540 1.10715 1.24905
_0.98279 _0.78540 _0.46365 0.00000 0.46365 0.78540 0.98279
_0.78540 _0.58800 _0.32175 0.00000 0.32175 0.58800 0.78540

​The default display is for trailing zeros to be suppressed. Columns align
but within each column the number display is right aligned.

Maybe 8!:x (format) can display the numbers more to your liking.


On Thu, Jul 31, 2014 at 10:15 PM, Linda Alvord <[email protected]>
wrote:

> I sent this to New Zealand by mistake.
>
>
>
> From: Linda Alvord [mailto:[email protected]]
> Sent: Tuesday, July 29, 2014 9:29 AM
> To: ([email protected])
> Subject: zero is an integer
>
>
>
> Here is a numerical data array.  Since 0 is an integer, shouldn't it be
> aligned under the three in the last 4 rows?
>
>
>
>     at2=: 13 :'([:{:"1 *.) j./"1 y'
>
>
>
>    at2 /~ i:3
>
>  _2.35619  _2.55359  _2.81984 3.14159  2.81984  2.55359  2.35619
>   _2.1588  _2.35619  _2.67795 3.14159  2.67795  2.35619   2.1588
>  _1.89255  _2.03444  _2.35619 3.14159  2.35619  2.03444  1.89255
>   _1.5708   _1.5708   _1.5708       0   1.5708   1.5708   1.5708
>  _1.24905  _1.10715 _0.785398       0 0.785398  1.10715  1.24905
> _0.982794 _0.785398 _0.463648       0 0.463648 0.785398 0.982794
> _0.785398 _0.588003 _0.321751       0 0.321751 0.588003 0.785398
>
>
>
> I'm not sure it is possible,  but the table would be much easier to read.
>
>
>
> Lindaa
>
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