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DWT 310: Everstine's collection
Hull with refinement

from set DWT, from the Harwell-Boeing Collection

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Visualizations

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Structure Plot
structure plot


Matrix Statistics

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Size Type
310 x 310, 2448 entries pattern symmetric indefinite
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
2448 310 1069 1069 0
Column Data Row Data
Average nonzeros per column : 7.9
Standard deviation : 1.5

indexnonzeros
longest111 11
shortest1 4

Average nonzeros per row : 7.9
Standard deviation : 1.5

indexnonzeros
longest111 11
shortest1 4

Bandwidths Profile Storage
lower29 upper29
average |i-j|5.5 std.dev.4.2
minmaxave.std.dev.
lower bandwidth1 29 9.7 3.1
upper bandwidth1 29 9.7 3.1

Symmetric skyline storage requirement:3006

Heaviest diagonals
offset from main0 -1 1 -8 8 -7 7 -6 6 -9
nonzeros310 266 266 225 225 166 166 146 146 106
accumulated percent12.6623.5334.4043.5952.7859.5666.3472.3078.2782.60

Top 10 out of 57 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: ]