Devon McCormick <devon...@gmail.com> writes:

> I sometimes use "(<x)+./ . E &> y" to look up any occurrences of string x
> in vector of strings y

Just to be clear, let me point out I was looking for cases where the left 
argument to matrix product is NOT an insert, and here it IS an insert, namely 
+./

Also, I'm not sure that expression works:

   (<'ab') +./. E.&> 'ac';'cab';'bca';'bab'
|domain error
|   (<'ab')+./.    E.&>'ac';'cab';'bca';'bab'

I use @: for this task instead:

   (<'ab') +./@:E.&> 'ac';'cab';'bca';'bab'
0 1 0 1

-- 
Omar
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