William Kahan

William Kahan (born June 5, 1933, Toronto, Ontario, Canada) is a Canadian mathematician and computer scientist and winner of the 1989 A.M. Turing Award, the highest honour in computer science, for his “fundamental contributions to numerical analysis.” Kahan earned a bachelor’s degree (1954), a master’s degree (1956), and a doctorate (1958), all in mathematics, from the University of Toronto. Most of his career was spent at the University of California, Berkeley (1969–2008). Kahan was instrumental...