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Kenneth E. Iverson

Kenneth Eugene Iverson (17 December 1920 – 19 October 2004) was a Canadian computer scientist noted for the development of the programming language APL. He was honored with the Turing Award in 1979 "for his pioneering effort in programming languages and mathematical notation resulting in what the computing field now knows as APL; for his contributions to the implementation of interactive systems, to educational uses of APL, and to programming language theory and practice".[1]

Life[edit]

Ken Iverson was born on 17 December 1920 near Camrose, a town in central Alberta, Canada.[2] His parents were farmers who came to Alberta from North Dakota; his ancestors came from Trondheim, Norway.[3]


During World War II, he served first in the Canadian Army and then in the Royal Canadian Air Force.[3][4] He received a B.A. degree from Queen's University and the M.Sc. and Ph.D. degrees from Harvard University. In his career, he worked for Harvard, IBM, I. P. Sharp Associates, and Jsoftware Inc. (née Iverson Software Inc.).


Iverson suffered a stroke while working at the computer on a new J lab on 16 October 2004,[5] and died in Toronto on 19 October 2004 at age 83.[2]

IBM, 1970[1][49]

IBM Fellow

IEEE Computer Society, 1975[49]

Harry H. Goode Memorial Award

Member, (USA), 1979[138]

National Academy of Engineering

(Charter recipient), IEEE Computer Society, 1982[139]

Computer Pioneer Award

Honorary doctorate, , 1998[140]

York University

In 2015, a new moth species, Agdistis iversoni, was named after him.

[141]

Iverson Award

Iverson bracket

Floor and ceiling functions

List of pioneers in computer science

at Open Library

Works by Kenneth E. Iverson

A Celebration of the Life of Kenneth Eugene Iverson

Collected Eulogies


programming competition at the University of Alberta for high school students

Iverson Exam


illustrations of what Iverson was like as a person, what he was like to work with, the milieu in which he studied and worked, his outlook on life, his sense of humor, etc.

Ken Iverson Quotations and Anecdotes


sketches of Iverson, his colleagues, and his intellectual descendants

APL Quotations and Anecdotes