[Jprogramming] Searching for matching rows in a matrix

[R.E. Boss]

> Namens Raul Miller
> (...)
>    a {. at E."1/ b
> 0 0
> 1 0
> 0 1
> 0 0
> 0 0
> 


   a -:"1/ b
0 0
1 0
0 1
0 0
0 0


R.E. Boss