The Matrix Market

Home Search Browse Resources

CK104: Chuck Matrices

from set CHUCK, from the NEP Collection

[Download] [Visualizations] [Matrix Statistics] [Set Information]


Download as

Help: My browser can't read the compressed data files. What now?


Visualizations

Click on image to get an enlarged version. Click on label to get an explanation.

Structure Plot City Plot
structure plot city plot
3D Interactive City Plot

[ VRML Version 2, gzipped ] 122804 bytes


Matrix Statistics

Click on label to get an explanation.

Size Type
104 x 104, 992 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
992 104 444 444 888
Column Data Row Data
Average nonzeros per column : 9.5
Standard deviation : 1.2

indexnonzeros
longest5 10
shortest1 6

Average nonzeros per row : 9.5
Standard deviation : 1.2

indexnonzeros
longest5 10
shortest1 6

Bandwidths Profile Storage
lower56 upper56
average |i-j|22 std.dev.23
minmaxave.std.dev.
lower bandwidth0 55 28 24
upper bandwidth0 55 28 24

Symmetric skyline storage requirement:5792

Heaviest diagonals
offset from main0 -4 4 -1 1 -50 50 -5 -3 3
nonzeros104 96 96 52 52 50 50 48 48 48
accumulated percent10.4820.1629.8435.0840.3245.3650.4055.2460.0864.92

Top 10 out of 27 nonvoid diagonals.
Conditioning
Frobenius norm11 condition number (est.)2.4e+04
2-norm (est.)5.7 diagonal dominanceno


Set Information

Set CHUCK
Source: J. Cullum, IBM T.J. Watson Research Center
Discipline:unknown


The Matrix Market is a service of the Mathematical and Computational Sciences Division / Information Technology Laboratory / National Institute of Standards and Technology.

[ Home ] [ Search ] [ Browse ] [ Resources ]

Last change in this page: Wed Sep 22 13:37:23 US/Eastern 2004 [Comments: ]