CK400: Chuck Matrices

from set CHUCK, from the NEP Collection

Download as

Compressed MatrixMarket format file: ck400.mtx.gz (25357 bytes)
Compressed Harwell-Boeing format file: ck400.rua.gz (19643 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 ] 350639 bytes

Matrix Statistics

Size	Type
400 x 400, 2860 entries	real unsymmetric
Nonzeros
total diagonal below diagonal above diagonal A-A' 2860 400 1218 1242 2484
Column Data	Row Data
Average nonzeros per column : 7.2 Standard deviation : 3 index nonzeros longest 5 10 shortest 197 2	Average nonzeros per row : 7.2 Standard deviation : 3 index nonzeros longest 5 10 shortest 197 2
Bandwidths	Profile Storage
lower 204 upper 204 average |i-j| 72 std.dev. 94	min max ave. std.dev. lower bandwidth 0 203 81 96 upper bandwidth 0 203 81 96 Nonsymmetric skyline storage 64140
Heaviest diagonals
offset from main 0 -4 4 -1 1 3 5 198 -5 -3 nonzeros 400 392 392 112 112 110 110 109 108 108 accumulated percent 13.99 27.69 41.40 45.31 49.23 53.08 56.92 60.73 64.51 68.29 Top 10 out of 27 nonvoid diagonals.
Conditioning
Frobenius norm 15 condition number (est.) 2.2e+06 2-norm (est.) 5.7 diagonal dominance no

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Last change in this page: Wed Sep 22 13:37:23 US/Eastern 2004 [Comments: ]