APL/IV: Fourth International APL Users' Conference. June 15-16, 1972, Atlanta, Georgia, U.S.A.

APL is a computer language (A Programing Language). Papers at this conference of APL users deal with the following topics: an APL approach to interactive display terminals; graphics in APL; an interactive APL graphics system; modeling a satellite experiment on APL; representing negative integers in bit vectors; APL as a teaching tool--two versatile tutorial approaches; the evolution of an interactive chemistry laboratory program; a collection of graph analysis APL functions; management of APL time-sharing activities; saving money by saving space in APL; security of APL application packages; enhanced interaction for an APL system; subtasking in APL; suggestions for a "mapped" extension of APL; APL as a notation for statistical analysis; an adaptive query system; microprogram training--an APL extension; and APL electronic circuit analysis program and use of APL in teaching electrical network theory. Also included is a bibliography of 340 items dealing with APL. (JK)