mata
: a=2\9\4\7\5\3\6\1\8

: sort(a,1)
       1
    +-----+
  1 |  1  |
  2 |  2  |
  3 |  3  |
  4 |  4  |
  5 |  5  |
  6 |  6  |
  7 |  7  |
  8 |  8  |
  9 |  9  |
    +-----+
end