ISSN:
1070-5325
Schlagwort(e):
orthogonal
;
orthonormal
;
regression coefficients
;
pivoting
;
singular values
;
least squares
;
Engineering
;
Numerical Methods and Modeling
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Mathematik
Notizen:
Accuracy of a Gram-Schmidt algorithm for the solution of linear least squares equations is compared with accuracy of least squares subroutines in three highly respected mathematical packages that use Householder transformations. Results from the four programs for 13 test problems were evaluated at 16 digit precision on four different desktop computers using four different compilers. Singular values obtained from the different programs are compared and the effect of pivoting to improve the accuracy is discussed. Solution vectors from the program using the Gram-Schmidt algorithm were generally more accurate or comparable to solution vectors from the programs using the Householder transformations. © 1997 John Wiley & Sons, Ltd.
Zusätzliches Material:
3 Ill.
Materialart:
Digitale Medien
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