A Description of the APT Language
The APT (Automatically Programmed Tools) language
for numerical control programming is described 
using the metalinguistic notation introduced in the ALGOL
60 report.  Examples of APT usage are included. 
 Presented also are an historical summary of the development
of APT and a statement concerning its present 
status.  
CACM November, 1963
Brown, S. A.
Drayton, C. E.
Mittman, B.
