The Matrix Market

Home Search Browse Resources

BCSSTM24: BCS Structural Engineering Matrices (eigenvalue problems)
Calgary Olympic Saddledome arena

from set BCSSTRUC3, from the Harwell-Boeing Collection

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


From generalized eigenvalue problem Kx=(lambda)Mx. This is matrix M; matrix K is BCSSTK24 from BCSSTRUC3 set.


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 ] 432565 bytes


Matrix Statistics

Click on label to get an explanation.

Size Type
3562 x 3562, 3562 entries real symmetric positive definite
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
3562 3562 0 0 0
Column Data Row Data
Average nonzeros per column : 1
Standard deviation : 0

indexnonzeros
longest1 1
shortest1 1

Average nonzeros per row : 1
Standard deviation : 0

indexnonzeros
longest1 1
shortest1 1

Bandwidths Profile Storage
lower1 upper1
average |i-j|0 std.dev.0
minmaxave.std.dev.
lower bandwidth1 1 1 0
upper bandwidth1 1 1 0

Symmetric skyline storage requirement:3562

Heaviest diagonals
offset from main0
nonzeros3562
accumulated percent100.00

Top 1 out of 1 nonvoid diagonals.
Conditioning
Frobenius norm6.3e+06 condition number (est.)1.8e+13
2-norm (est.)1e+06 diagonal dominanceyes


Set Information

Set BCSSTRUC3
Source: John Lewis, Boeing Computer Services, Seattle, WA
Discipline:Dynamic analyses in structural engineering
Accession:Summer 1984 to spring 1985


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 13:33:26 US/Eastern 2004 [Comments: ]