WEST0989: Chemical engineering plant models
Seven stage column section, all rigorous

from set CHEMWEST, from the Harwell-Boeing Collection

Download as

Compressed MatrixMarket format file: west0989.mtx.gz (24150 bytes)
Compressed Harwell-Boeing format file: west0989.rua.gz (21837 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 ] 431829 bytes

Matrix Statistics

Size	Type
989 x 989, 3537 entries	real unsymmetric
Nonzeros
total diagonal below diagonal above diagonal A-A' 3518 5 2030 1483 6948
Column Data	Row Data
Average nonzeros per column : 3.6 Standard deviation : 3.6 index nonzeros longest 88 26 shortest 82 1	Average nonzeros per row : 3.6 Standard deviation : 2.4 index nonzeros longest 430 12 shortest 1 1
Bandwidths	Profile Storage
lower 856 upper 621 average |i-j| 2e+02 std.dev. 1.6e+02	min max ave. std.dev. lower bandwidth 2 971 2.5e+02 1.9e+02 upper bandwidth 2 944 3.5e+02 2.6e+02 Nonsymmetric skyline storage 587660
Heaviest diagonals
offset from main 13 12 10 16 -203 -31 -223 -180 -160 -137 nonzeros 42 33 31 31 29 28 27 27 27 27 accumulated percent 1.19 2.13 3.01 3.89 4.72 5.51 6.28 7.05 7.82 8.58 Top 10 out of 757 nonvoid diagonals.
Conditioning
Frobenius norm 1.3e+06 condition number (est.) 5.7e+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: ]