Accession Number : AD0726636

Title :   Algorithms for the Solution of Large Matrix Systems Arising in Least Squares Problems.

Descriptive Note : Final rept.,

Corporate Author : WORLD SYSTEMS LABS INC BETHESDA MD

Personal Author(s) : Sheffield,Charles

Report Date : JUN 1971

Pagination or Media Count : 81

Abstract : Algorithms are defined for this solution of large least squares problems using digital computers with multi-level storage. Methods are given both for normal equations solution and for direct solution of the equations of condition. The normal equations technique is compared with other available methods in terms of speed and accuracy. The methods have obvious applications in the fields of satellite geodesy, quantum chemistry, phase shift analysis and other large scale data reduction problems. (Author)

Descriptors :   (*MATRICES(MATHEMATICS), *LEAST SQUARES METHOD), (*COMPUTER PROGRAMMING, MATRICES(MATHEMATICS)), SIMULTANEOUS EQUATIONS, MEMORY DEVICES, MAGNETIC TAPE, PERMUTATIONS, DATA PROCESSING, SUBROUTINES

Subject Categories : Statistics and Probability
      Computer Programming and Software
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE