I find this example unconvincing as the following achieves the same end
much more simply and efficiently.

   f i.2 5
  0        1      0.5 0.333333     0.25
0.2 0.166667 0.142857    0.125 0.111111
   f 0
0
   f 3j4
0.12j_0.16




On Thu, Oct 10, 2013 at 9:48 PM, David Lambert <b49p23t...@stny.rr.com>wrote:

> I don't find examples of "under itemize" in the under essay.  I inserted
> an entry " Extend verb domain".
>
>
>    reciprocal_or_zero =: =&0`(0,:~%)}   NB. zeros may come from fill
>
>    reciprocal_or_zero 8                 NB. OH NO!
> |rank error: reciprocal_or_zero
> |       reciprocal_or_zero 8
>
>
>    (;$) reciprocal_or_zero&.,:8
> +-----++
> |0.125||
> +-----++
>
>    (;$) reciprocal_or_zero&.,:i. 2 5
> +-----------------------------**----------+---+
> |  0        1      0.5 0.333333     0.25|2 5|
> |0.2 0.166667 0.142857    0.125 0.111111|   |
> +-----------------------------**----------+---+
>
> ------------------------------**------------------------------**----------
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> http://www.jsoftware.com/**forums.htm<http://www.jsoftware.com/forums.htm>
>
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