John GF Francis
John GF Francis (* 1934 in London ) is a British computer scientist.
Francis worked from 1954 for the National Research Development Corporation (NRDC), a British government organization founded in 1948 for technology transfer, particularly for the technologies developed by the military during the Second World War. He studied at Cambridge University in 1955/56 , but did not graduate, but returned to NRDC, where he was assistant to Christopher Strachey . During this time he developed the QR algorithm for the determination of eigenvalues , published in 1961. It was independently found around the same time in 1961 by the Russian Vera Nikolajewna Kublanowskaja . In 1961 he moved from NRDC to the Ferranti computer company . He later worked at the University of Sussex , in industry and with consulting firms. He lives in Hove near Brighton .
After developing the QR transformation, he turned away from numerical mathematics and dealt among other areas of computer science such as artificial intelligence and computer languages and worked as a systems engineer.
literature
- Gene Golub , F. Uhlig The QR algorithm: 50 years later its genesis by John Francis and Vera Kublanovskaya and subsequent developments , IMA Journal of Numerical Analysis, Volume 29, 2009, pp. 467-485
Individual evidence
- ↑ JGF Francis The QR transformation , Part 1.2, The Computer Journal, Volume 4, 1961/1962, pp 265, 332
- ↑ Gene Golub to Francis
| personal data | |
|---|---|
| SURNAME | Francis, John GF |
| BRIEF DESCRIPTION | British computer scientist |
| DATE OF BIRTH | 1934 |
| PLACE OF BIRTH | London |