A profile matrix solver with built‐in constraint facility
Peter Bettess
(School of Marine Technology, University of Newcastle upon Tyne, Newcastle upon Tyne NE1 7RU, UK)
Jacqueline A. Bettess
(Computer Centre, Sunderland Polytechnic, Sunderland SR1 3SD, UK)
44
Abstract
A profile solver which factorizes the profile matrix K into the form LDLT, is described. D is a diagonal matrix and L is a lower triangular matrix. LT is stored by columns, using a steering vector, to locate the elements. In addition a fixity vector is used. This indicates which degrees of freedom are free and which are fixed. A main program uses a random number generator to set up test data. Full listings are given, together with information on how to get a copy of the program.
Citation
Bettess, P. and Bettess, J.A. (1986), "A profile matrix solver with built‐in constraint facility", Engineering Computations, Vol. 3 No. 3, pp. 209-216. https://doi.org/10.1108/eb023658
Publisher
:MCB UP Ltd
Copyright © 1986, MCB UP Limited