JAGMESH3: Graded L-shape patterns
Plain square

from set JAGMESH, from the Harwell-Boeing Collection

Download as

Compressed MatrixMarket format file: jagmesh3.mtx.gz (8837 bytes)
Compressed Harwell-Boeing format file: jagmesh3.psa.gz (8243 bytes)

Visualizations

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

Structure Plot

Matrix Statistics

Size	Type
1089 x 1089, 4225 entries	pattern symmetric indefinite
Nonzeros
total diagonal below diagonal above diagonal A-A' 7361 1089 3136 3136 0
Column Data	Row Data
Average nonzeros per column : 6.8 Standard deviation : 0.67 index nonzeros longest 18 7 shortest 1 3	Average nonzeros per row : 6.8 Standard deviation : 0.67 index nonzeros longest 18 7 shortest 1 3
Bandwidths	Profile Storage
lower 1059 upper 1059 average |i-j| 40 std.dev. 1.3e+02	min max ave. std.dev. lower bandwidth 1 1059 66 1.6e+02 upper bandwidth 1 1059 66 1.6e+02 Symmetric skyline storage requirement:71963
Heaviest diagonals
offset from main 0 -1 1 -13 13 -12 12 -11 11 -10 nonzeros 1089 985 985 200 200 184 184 168 168 152 accumulated percent 14.79 28.18 41.56 44.27 46.99 49.49 51.99 54.27 56.55 58.62 Top 10 out of 431 nonvoid diagonals.
Conditioning
Pattern matrix. No conditioning information.

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Last change in this page: Wed Sep 22 13:33:40 US/Eastern 2004 [Comments: ]