IMPCOL D: Chemical engineering plant models
Nitric acid plant model

from set CHEMIMP, from the Harwell-Boeing Collection

Download as

Compressed MatrixMarket format file: impcol_d.mtx.gz (4954 bytes)
Compressed Harwell-Boeing format file: impcol_d.rua.gz (3807 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 ] 156664 bytes

Matrix Statistics

Size	Type
425 x 425, 1339 entries	real unsymmetric
Nonzeros
total diagonal below diagonal above diagonal A-A' 1255 28 502 725 2358
Column Data	Row Data
Average nonzeros per column : 3 Standard deviation : 2.2 index nonzeros longest 26 10 shortest 28 1	Average nonzeros per row : 3 Standard deviation : 1.8 index nonzeros longest 20 10 shortest 1 1
Bandwidths	Profile Storage
lower 407 upper 46 average |i-j| 21 std.dev. 58	min max ave. std.dev. lower bandwidth 0 406 32 82 upper bandwidth 0 45 11 5.8 Nonsymmetric skyline storage 17521
Heaviest diagonals
offset from main 7 6 8 -13 15 9 16 -3 -12 -14 nonzeros 129 93 86 59 53 52 52 46 44 36 accumulated percent 10.28 17.69 24.54 29.24 33.47 37.61 41.75 45.42 48.92 51.79 Top 10 out of 80 nonvoid diagonals.
Conditioning
Frobenius norm 1.4e+02 condition number (est.) 1.9e+03 2-norm (est.) 10 diagonal dominance no

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Last change in this page: Wed Sep 22 13:33:31 US/Eastern 2004 [Comments: ]