Heinz Rutishauser
Heinz Rutishauser (30 January 1918 – 10 November 1970) was a Swiss mathematician and a pioneer of modern numerical mathematics and computer science.From 1942 to 1945, he was assistant of Walter Saxer at the ETH, and from 1945 to 1948, a mathematics teacher in Glarisegg and Trogen.In 1948, he received his Doctor of Philosophy (PhD) from ETH with a well-received thesis on complex analysis.From 1949 to 1955, he was a research associate at the Institute for Applied Mathematics at ETH Zürich recently founded by Eduard Stiefel, where he worked together with Ambros Speiser on developing the first Swiss computer ERMETH, and developed the programming language Superplan (1949–1951), the name being a reference to Rechenplan (English: computation plan), in Konrad Zuse's terminology, designating a single Plankalkül program.[2] Among other contributions, he introduced several basic syntactic features to computer programming, notably the reserved word (keyword) for for a for loop, first as the German für in Superplan, next via its English translation for in ALGOL 58.