QH882: Quebec Hydroelectric Power System

from set QUEBEC, from the NEP Collection

Download as

Compressed MatrixMarket format file: qh882.mtx.gz (17796 bytes)
Compressed Harwell-Boeing format file: qh882.rua.gz (13882 bytes)

Visualizations

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

Structure Plot	City Plot
	3D Interactive City Plot
	[ VRML Version 2, gzipped ] 406841 bytes

Matrix Statistics

Size	Type
882 x 882, 3354 entries	real unsymmetric
Nonzeros
total diagonal below diagonal above diagonal A-A' 3354 498 1509 1347 3066
Column Data	Row Data
Average nonzeros per column : 3.8 Standard deviation : 1.7 index nonzeros longest 523 14 shortest 740 1	Average nonzeros per row : 3.8 Standard deviation : 1.7 index nonzeros longest 523 12 shortest 738 1
Bandwidths	Profile Storage
lower 519 upper 519 average |i-j| 1.8e+02 std.dev. 2e+02	min max ave. std.dev. lower bandwidth 0 518 1.3e+02 1.9e+02 upper bandwidth 0 518 1.2e+02 1.9e+02 Nonsymmetric skyline storage 220564
Heaviest diagonals
offset from main 0 -1 1 -2 -4 2 -442 442 -466 466 nonzeros 498 453 435 60 50 36 28 28 26 26 accumulated percent 14.85 28.35 41.32 43.11 44.60 45.68 46.51 47.35 48.12 48.90 Top 10 out of 373 nonvoid diagonals.
Conditioning
Frobenius norm 23 condition number (est.) 5.7e+03 2-norm (est.) 2.7 diagonal dominance no

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Last change in this page: Wed Sep 22 13:37:27 US/Eastern 2004 [Comments: ]