Modelling ARMAC - adaptive control

[From Rupert Young (981019.1840 BST)]

Hi, Bill,

Attached is artcereb.pas and artcereb.exe. Also the two units, grutils.pas
and textunit.pas. Hope you can figure them out.

Thanks, I got it running at home but am not quite sure what I am looking at.
Could you explain what the mass, damping and spring are doing ?

Regards,
Rupert