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NNC1374: Nuclear reactor models

from set NUCL, from the Harwell-Boeing Collection

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Visualizations

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Structure Plot City Plot
structure plot city plot
Spectral Portrait 3D Interactive City Plot
spectral portrait

[ VRML Version 2, gzipped ] 192718 bytes


Matrix Statistics

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Size Type
1374 x 1374, 8606 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
8588 870 3442 4276 4548
Column Data Row Data
Average nonzeros per column : 6.3
Standard deviation : 3.4

indexnonzeros
longest83 16
shortest15 1

Average nonzeros per row : 6.3
Standard deviation : 2.5

indexnonzeros
longest83 16
shortest15 1

Bandwidths Profile Storage
lower618 upper618
average |i-j|30 std.dev.37
minmaxave.std.dev.
lower bandwidth1 618 39 48
upper bandwidth1 618 39 48

Nonsymmetric skyline storage 106528

Heaviest diagonals
offset from main0 4 3 5 6 7 8 9 -4 -3
nonzeros870 259 258 230 220 207 201 187 181 180
accumulated percent10.1313.1516.1518.8321.3923.8026.1428.3230.4332.52

Top 10 out of 276 nonvoid diagonals.
Conditioning
Frobenius norm9.6e+03 condition number (est.)1e+02
2-norm (est.)1.1e+03 diagonal dominanceno


Set Information

Set NUCL
Source: National Nuclear Corporation
Discipline:Nuclear reactor modeling
Accession:Spring 1982


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Last change in this page: Wed Sep 22 13:33:47 US/Eastern 2004 [Comments: ]