octave: X11 DISPLAY environment variable not set
octave: disabling GUI features
error: writing file '/.octave_hist': Read-only file system
error: ignoring const octave::execution_exception& while preparing to exit

   1   2   1   4
   5   0   2   8
   10   11   12   13
   17   18   19   20
   24   25   26   27
   31   32   33   34
   1   2   3
   4   5   6
   7   8   9

   1   2   1   4
   5   0   2   8
   10   11   12   13
   17   18   19   20
   24   25   26   27
   31   32   33   34
   1   2   3
   4   5   6
   7   8   9