Peter Landin

Peter Landin
Born	Peter John Landin (1930-06-05)5 June 1930 Sheffield, West Riding of Yorkshire, England
Died	3 June 2009(2009-06-03) (aged 78)
Citizenship	United Kingdom
Education	Clare College, Cambridge University
Known for	ISWIM, J operator, SECD machine, off-side rule, syntactic sugar
Scientific career
Fields	Computer science, education
Institutions	Christopher Strachey, computer consultant Univac Massachusetts Institute of Technology Queen Mary University of London

Peter John Landin (5 June 1930 – 3 June 2009^[1][2]) was a British computer scientist. He was one of the first to realise that the lambda calculus could be used to model a programming language, an insight that is essential to the development of both functional programming and denotational semantics.