Explanation: the page describes the 1982 UNIX APL\11, with REAL OVERSTRIKES.
It does not describe the old UNIX APL. If you multiply with "#", you
have the old APL; if you multiply with "M" or "X", you have the new
APL.
--
Col. G. L. Sicherman
UU: ...{rocksvax|decvax}!sunybcs!colonel
CS: colonel@buffalo-cs
BI: csdsicher@sunyabva