Amos source code displaying 4 points that can be dragged by a mouse.
Program targets third degree polynomial through it.

PERMISSION  UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP     NAME
---------- ----------- ------- ------- ------ ---------- ------------ ----------
[generic]                 1581   10028  15.8% -lh5- 2a12 Dec  8  1980 dynamiczne wielomiany.amos
[generic]                  239     357  66.9% -lh5- 2807 Dec  8  1980 dynamiczne wielomiany.txt
---------- ----------- ------- ------- ------ ---------- ------------ ----------
 Total         2 files    1820   10385  17.5%            Dec 10 03:12