focal

adj 1: having or localized centrally at a focus; "focal point";

"focal infection"

2: of or relating to a focus; "focal length"

FOCAL

1. FOrmula CALculator.

An interactive system written by Rick Merrill of {DEC} in 1969

for {PDP-5} and {PDP-8}. It was a descendant of {AID}/{JOSS}.

Versions: FOCAL-69, FOCAL-1971, FOCAL-11 (for {PDP-11} under

{RT-11}).

(1994-12-21)

2. Forty-One CAlculator Language.

The programming language of the HP-41 calculator line.

(1994-12-21)