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ROUNDING-OFF ERRORS IN MATRIX PROCESSES

1948/01/01 by Alan Turing · 6 citations
Computer Science · Engineering · #Neural Networks and Applications #Manufacturing Process and Optimization #Face and Expression Recognition

paper · pdf · doi:10.1093/qjmam/1.1.287

openalex publication_date 1948/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

A number of methods of solving sets of linear equations and inverting matrices are discussed. The theory of the rounding-off errors involved is investigated for some of the methods. In all cases examined, including the well-known ‘Gauss elimination process’, it is found that the errors are normally quite moderate: no exponential build-up need occur. Included amongst the methods considered is a generalization of Choleski's method which appears to have advantages over other known methods both as regards accuracy and convenience. This method may also be regarded as a rearrangement of the elimination process.

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