User`s guide

LDL Factorization
5-255
The following options are available:
•
Ignore – Proceed with the computation and do not issue an alert. The output
is not a valid factorization. A partial factorization will be present in the
upper left corner of the ouput.
•
Warning – Display a warning message in the MATLAB command window,
and continue the simulation. The output is not a valid factorization. A partial
factorization will be present in the upper left corner of the ouput.
•
Error – Display an error dialog box and terminate the simulation.
Example LDL decomposition of a 3-by-3 Hermitian positive definite matrix:
Dialog Box
Non-positive definite input
Response to non-positive definite matrix inputs. Tunable.
References Golub, G. H., and C. F. Van Loan. Matrix Computations. 3rd ed.
Baltimore, MD: Johns Hopkins University Press, 1996.
Supported
Data Types
91– 2
1– 85–
25– 7
9.00 0.11– 0.22
0.11– 7.89 0.61–
0.22 0.61– 3.66
L
100
0.11– 10
0.22 0.61– 1
= L'
10.11– 0.22
0 1 0.61–
00 1
=D
9.00 0 0
07.890
0 0 3.66
=
Double-precision floating point