HB/ash292

SYMMETRIC PATTERN OF NORMAL MATRIX OF U.K. SURVEY. ASHKENAZI, 1974
Name ash292
Group HB
Matrix ID 8

Num Rows

292

Num Cols

292

Nonzeros

2,208

Kind

Least Squares Problem

Symmetric

Yes

Date

1974

Author

V. Askenazi

Editor

A. Curtis, I. Duff, J. Reid
Structural Rank 292
Structural Rank Full true

Num Dmperm Blocks

1

Strongly Connect Components

1

Num Explicit Zeros

0

Pattern Symmetry

100%

Numeric Symmetry

100%

Cholesky Candidate

yes

Positive Definite

no

Type

binary
SVD Statistics
Matrix Norm 9.152221e+00
Minimum Singular Value 7.717297e-18
Condition Number 1,185,935,987,762,345,472
Rank 289
sprank(A)-rank(A) 3
Null Space Dimension 3
Full Numerical Rank? no
Download Singular Values MATLAB