You did not provide a definition for f.

f=: *%]

gives me this kind of result:

   (*%]) i.2 5
  0        1      0.5 0.333333     0.25
0.2 0.166667 0.142857    0.125 0.111111
   (*%]) 0
0
   (*%]) 3j4
0.2j1.77636e_17

So I'm not sure how you got 0.12j_0.16

Hints?

Thanks,

-- 
Raul


On Fri, Oct 11, 2013 at 2:20 AM, Roger Hui <rogerhui.can...@gmail.com> wrote:
> 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|   |
>> +-----------------------------**----------+---+
>>
>> ------------------------------**------------------------------**----------
>> For information about J forums see 
>> http://www.jsoftware.com/**forums.htm<http://www.jsoftware.com/forums.htm>
>>
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm

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