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WEST0497: Chemical engineering plant models
Rigorous flash unit with recycling

from set CHEMWEST, from the Harwell-Boeing Collection

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


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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 ] 211579 bytes


Matrix Statistics

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Size Type
497 x 497, 1727 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
1721 6 790 925 3420
Column Data Row Data
Average nonzeros per column : 3.5
Standard deviation : 4.7

indexnonzeros
longest182 55
shortest75 1

Average nonzeros per row : 3.5
Standard deviation : 3.9

indexnonzeros
longest234 28
shortest1 1

Bandwidths Profile Storage
lower417 upper275
average |i-j|98 std.dev.94
minmaxave.std.dev.
lower bandwidth1 470 1.7e+02 1.3e+02
upper bandwidth1 451 1.3e+02 1.2e+02

Nonsymmetric skyline storage 147465

Heaviest diagonals
offset from main25 8 -70 28 37 110 16 104 -54 -49
nonzeros63 50 49 49 47 33 25 24 22 22
accumulated percent 3.66 6.57 9.4112.2614.9916.9118.3619.7621.0322.31

Top 10 out of 361 nonvoid diagonals.
Conditioning
Frobenius norm1.2e+06 condition number (est.)1.4e+12
2-norm (est.)6.9e+05 diagonal dominanceno


Set Information

Set CHEMWEST
Source: Art Westerberg, University of Pittsburgh
Discipline:Chemical engineering
Accession:Summer 1983


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Last change in this page: Wed Sep 22 13:33:32 US/Eastern 2004 [Comments: ]