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YOUNG3C: Acoustic scattering

from set ACOUST, from the Harwell-Boeing Collection

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Visualizations

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Structure Plot City Plot
structure plot city plot
3D Interactive City Plot

[ VRML Version 2, gzipped ] 179563 bytes


Matrix Statistics

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Size Type
841 x 841, 3988 entries complex symmetric indefinite
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'A-A*
4183 841 1671 1671 0 190
Column Data Row Data
Average nonzeros per column : 5
Standard deviation : 0.56

indexnonzeros
longest161 8
shortest1 3

Average nonzeros per row : 5
Standard deviation : 0.56

indexnonzeros
longest161 8
shortest1 3

Bandwidths Profile Storage
lower31 upper31
average |i-j|12 std.dev.14
minmaxave.std.dev.
lower bandwidth1 31 29 5.1
upper bandwidth1 31 29 5.1

Symmetric skyline storage requirement:24441

Heaviest diagonals
offset from main0 -29 -1 1 29 -30 30 -28 28
nonzeros841 812 812 812 812 24 24 23 23
accumulated percent20.1139.5258.9378.3497.7598.3398.9099.45100.00

Top 9 out of 9 nonvoid diagonals.
Conditioning
Frobenius norm8.5e+03 condition number (est.)1.8e+04
2-norm (est.)7.1e+02 diagonal dominanceno


Set Information

Set ACOUST
Source: David P. Young, Boeing Computer Services, Seattle, Washington
Discipline:Dynamic analysis in structural engineering
Accession:Spring 1984


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Last change in this page: Wed Sep 22 13:33:21 US/Eastern 2004 [Comments: ]