WEST0479: Chemical engineering plant models
Eight stage column section, all rigorous

from set CHEMWEST, from the Harwell-Boeing Collection

Download as

Compressed MatrixMarket format file: west0479.mtx.gz (13539 bytes)
Compressed Harwell-Boeing format file: west0479.rua.gz (12225 bytes)

Visualizations

Click on image to get an enlarged version. Click on label to get an explanation.

Structure Plot	City Plot
Spectral Portrait	3D Interactive City Plot
	[ VRML Version 2, gzipped ] 234376 bytes

Matrix Statistics

Size	Type
479 x 479, 1910 entries	real unsymmetric
Nonzeros
total diagonal below diagonal above diagonal A-A' 1888 8 1339 541 3734
Column Data	Row Data
Average nonzeros per column : 3.9 Standard deviation : 3.2 index nonzeros longest 88 35 shortest 82 1	Average nonzeros per row : 3.9 Standard deviation : 2.8 index nonzeros longest 436 12 shortest 1 1
Bandwidths	Profile Storage
lower 389 upper 338 average |i-j| 1.1e+02 std.dev. 1e+02	min max ave. std.dev. lower bandwidth 1 389 1.3e+02 1.1e+02 upper bandwidth 2 438 1.5e+02 1.2e+02 Nonsymmetric skyline storage 132401
Heaviest diagonals
offset from main -28 -35 1 13 -30 -40 -38 -34 16 -240 nonzeros 44 38 33 31 30 26 26 25 25 24 accumulated percent 2.33 4.34 6.09 7.73 9.32 10.70 12.08 13.40 14.72 16.00 Top 10 out of 413 nonvoid diagonals.
Conditioning
Frobenius norm 7.1e+05 condition number (est.) 1.4e+12 2-norm (est.) 3.2e+05 diagonal dominance no

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