BCSSTM25: BCS Structural Engineering Matrices (eigenvalue problems)
Columbia Center (Seattle) 76-story skyscraper

from set BCSSTRUC3, from the Harwell-Boeing Collection

From generalized eigenvalue problem Kx=(lambda)Mx. This is matrix M; matrix K is BCSSTK25 from BCSSTRUC3 set.

Download as

Compressed MatrixMarket format file: bcsstm25.mtx.gz (132011 bytes)
Compressed Harwell-Boeing format file: bcsstm25.rsa.gz (134608 bytes)

Visualizations

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

Structure Plot	City Plot
	3D Interactive City Plot
	[ VRML Version 2, gzipped ] 392292 bytes

Matrix Statistics

Size	Type
15439 x 15439, 15439 entries	real symmetric positive definite
Nonzeros
total diagonal below diagonal above diagonal A-A' 15439 15439 0 0 0
Column Data	Row Data
Average nonzeros per column : 1 Standard deviation : 0 index nonzeros longest 1 1 shortest 1 1	Average nonzeros per row : 1 Standard deviation : 0 index nonzeros longest 1 1 shortest 1 1
Bandwidths	Profile Storage
lower 1 upper 1 average |i-j| 0 std.dev. 0	min max ave. std.dev. lower bandwidth 1 1 1 0 upper bandwidth 1 1 1 0 Symmetric skyline storage requirement:15439
Heaviest diagonals
offset from main 0 nonzeros 15439 accumulated percent 100.00 Top 1 out of 1 nonvoid diagonals.
Conditioning
Frobenius norm 8.6e+09 condition number (est.) 6.1e+09 2-norm (est.) 7e+08 diagonal dominance yes

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

Last change in this page: Wed Sep 22 13:33:26 US/Eastern 2004 [Comments: ]