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Computer program for solution of large, sparse, unsymmetric systems of linear equations
Author(s) -
Key John E.
Publication year - 1973
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620060406
Subject(s) - system of linear equations , linear system , linear equation , computer program , computer science , mathematics , core (optical fiber) , algorithm , computational science , mathematical analysis , programming language , telecommunications
A computer program for the in‐core solution of large, sparse, unsymmetric systems of linear equations is presented in this paper. The program employs elimination techniques for solution of systems of linear equations. A limited number of zeros is stored and trivial arithmetic is by‐passed to preserve computer storage and to reduce the time required for solution. Several techniques for selecting the pivotal elements are discussed and their effect on accuracy and computational time are examined.