WEST0381: Chemical engineering plant models
Multiply fed column, 24 components

from set CHEMWEST, from the Harwell-Boeing Collection

Download as

Compressed MatrixMarket format file: west0381.mtx.gz (12517 bytes)
Compressed Harwell-Boeing format file: west0381.rua.gz (9737 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 ] 261045 bytes

Matrix Statistics

Size	Type
381 x 381, 2157 entries	real unsymmetric
Nonzeros
total diagonal below diagonal above diagonal A-A' 2134 1 925 1208 4252
Column Data	Row Data
Average nonzeros per column : 5.6 Standard deviation : 7.9 index nonzeros longest 355 50 shortest 328 1	Average nonzeros per row : 5.6 Standard deviation : 4.7 index nonzeros longest 72 25 shortest 266 1
Bandwidths	Profile Storage
lower 364 upper 154 average |i-j| 1.1e+02 std.dev. 87	min max ave. std.dev. lower bandwidth 2 364 1.6e+02 99 upper bandwidth 2 329 78 33 Nonsymmetric skyline storage 90350
Heaviest diagonals
offset from main 61 56 63 86 87 -164 85 37 40 84 nonzeros 76 54 53 52 50 48 31 30 30 30 accumulated percent 3.56 6.09 8.58 11.01 13.36 15.60 17.06 18.46 19.87 21.27 Top 10 out of 493 nonvoid diagonals.
Conditioning
Frobenius norm 3e+03 condition number (est.) 2e+06 2-norm (est.) 1.7e+03 diagonal dominance no

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