Amos source code drawing bezier curve along four points.

PERMISSION  UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP     NAME
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[generic]                 1257    5210  24.1% -lh5- 861d Dec  9  1980 dyn bezier.amos
[generic]                  198     286  69.2% -lh5- 3478 Dec  9  1980 dyn bezier.readme
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 Total         2 files    1455    5496  26.5%            Dec 10 03:12