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DWT 918: Everstine's collection
Beam with cutouts

from set DWT, from the Harwell-Boeing Collection

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


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Visualizations

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Structure Plot
structure plot


Matrix Statistics

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Size Type
918 x 918, 7384 entries pattern symmetric indefinite
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
7384 918 3233 3233 0
Column Data Row Data
Average nonzeros per column : 8
Standard deviation : 1.8

indexnonzeros
longest306 13
shortest5 4

Average nonzeros per row : 8
Standard deviation : 1.8

indexnonzeros
longest306 13
shortest5 4

Bandwidths Profile Storage
lower840 upper840
average |i-j|83 std.dev.1.9e+02
minmaxave.std.dev.
lower bandwidth1 840 1.2e+02 2.2e+02
upper bandwidth1 840 1.2e+02 2.2e+02

Symmetric skyline storage requirement:109273

Heaviest diagonals
offset from main0 -1 1 -2 2 -7 7 -6 6 -8
nonzeros918 658 658 262 262 164 164 160 160 133
accumulated percent12.4321.3430.2533.8037.3539.5741.7943.9646.1347.93

Top 10 out of 1019 nonvoid diagonals.
Conditioning
Pattern matrix. No conditioning information.


Set Information

Set DWT
Source: Gordon Everstine, David W. Taylor Naval Ship Research and Development Center, Bethesda, MD, USA.
Discipline:Structural engineering
Accession:Summer 1980


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Last change in this page: Wed Sep 22 13:33:35 US/Eastern 2004 [Comments: ]