The Matrix Market

Home Search Browse Resources

CAN 1054: Structures problems in aircraft design

from set CANNES, from the Harwell-Boeing 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
structure plot


Matrix Statistics

Click on label to get an explanation.

Size Type
1054 x 1054, 6625 entries pattern symmetric indefinite
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
12196 1054 5571 5571 0
Column Data Row Data
Average nonzeros per column : 12
Standard deviation : 5.6

indexnonzeros
longest414 35
shortest42 6

Average nonzeros per row : 12
Standard deviation : 5.6

indexnonzeros
longest414 35
shortest42 6

Bandwidths Profile Storage
lower1031 upper1031
average |i-j|1.2e+02 std.dev.1.8e+02
minmaxave.std.dev.
lower bandwidth1 1031 2.6e+02 2.5e+02
upper bandwidth1 1031 2.6e+02 2.5e+02

Symmetric skyline storage requirement:269049

Heaviest diagonals
offset from main0 -1 1 -2 2 -3 3 -4 4 -49
nonzeros1054 574 574 355 355 279 279 166 166 51
accumulated percent 8.6413.3518.0620.9723.8826.1628.4529.8131.1731.59

Top 10 out of 1215 nonvoid diagonals.
Conditioning
Pattern matrix. No conditioning information.


Set Information

Set CANNES
Source: Lucien Marro, Programmation Scientifique, Aerospatiale Cannes, France.
Discipline:Finite-element structures problems in aircraft design.
Accession:June 3, 1981


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 13:33:29 US/Eastern 2004 [Comments: ]