On Thu, Nov 10, 2011 at 5:54 PM, Nick Simicich <[email protected]> wrote:
>
> I have a second question.  I wanted to make two x by x matrices, and
> compare one of those matrices to a scalar, building a single matrix by
> extracting from each one.  What I wanted to do was to code some variation
> of.  I had a matrix where the filled in pieces were ordinary numbers and
> the placeholders were _.  I had a second matrix that had candidates, but
> they were not
>
> (a=b) { mat1,.mat2
>

Is this the sort of thing you were looking for?

   ]mat1=: (6 10?.@$10) { 'abcdefghij'
egigfigggj
dcdbjchajf
hhjheihecb
baedjdchee
adhfjgdcic
adfeaadbfa
   ('j'=mat1)}mat1,:'J'
egigfigggJ
dcdbJchaJf
hhJheihecb
baedJdchee
adhfJgdcic
adfeaadbfa
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