Accession Number : AD0278733

Title :   A SET OF MATRICES FOR TESTING COMPUTER PROGRAMS

Corporate Author : WISCONSIN UNIV MADISON MATHEMATICS RESEARCH CENTER

Personal Author(s) : BRENNER,J.L.

Report Date : MAY 1962

Pagination or Media Count : 1

Abstract : A set of matrices is defined, and the complete solution of each matrix is given. The matrices have arbitrary dimension, and a large nuber of parameters. By adjusting these parameters, a matrix of arbitrary dimension can be constructed which has two eigenvectos tht are nearly coincident, which is derogatory (has fewer than the maximum possible number of eigenvectors), or is s nearly singular as desired. Thus a set of matrices is available which forms a convenient set of check matrices for testing computer programs which purport to solve or invert a matrix. The matrices of the set have certain properties of regularity. For selected values of the parameters, the matrices appear as variance-covariance matices in statistics. In particular cases, the eigenvalues (but not the eigenvectors) and the determinants were found. (Autho)

Descriptors :   COMPUTER LOGIC

Distribution Statement : APPROVED FOR PUBLIC RELEASE