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| include ExceptionForMatrix | |
| def and_matrices(mx1, mx2) | |
| Matrix.Raise ErrDimensionMismatch, "Matrix dimension mismatch" unless (mx1.row_count == mx2.row_count && mx1.column_count == mx2.column_count) | |
| arr = Array.new(mx1.row_count){Array.new(mx1.column_count)} | |
| mx1.each_with_index{ |elem, ix, iy| arr[ix][iy] = (elem && mx2.element(ix,iy)) } | |
| Matrix.rows(arr) | |
| end |
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