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DWT 346: Everstine's collection
Deckhouse

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
346 x 346, 3226 entries pattern symmetric indefinite
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
3226 346 1440 1440 0
Column Data Row Data
Average nonzeros per column : 9.3
Standard deviation : 4.2

indexnonzeros
longest55 19
shortest30 2

Average nonzeros per row : 9.3
Standard deviation : 4.2

indexnonzeros
longest55 19
shortest30 2

Bandwidths Profile Storage
lower319 upper319
average |i-j|16 std.dev.31
minmaxave.std.dev.
lower bandwidth1 319 26 33
upper bandwidth1 319 26 33

Symmetric skyline storage requirement:9054

Heaviest diagonals
offset from main0 -1 1 -6 6 -4 4 -5 5 -22
nonzeros346 238 238 96 96 85 85 69 69 68
accumulated percent10.7318.1025.4828.4631.4334.0736.7038.8440.9843.09

Top 10 out of 115 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 13:33:34 US/Eastern 2004 [Comments: ]