DWT 66: Everstine's collection
Truss

from set DWT, from the Harwell-Boeing Collection

The finite element model that generated this matrix contains 66 nodes and 127 rod elements. The model is shown below. Beam and rod elements are drawn as tubes.

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Download as

Compressed MatrixMarket format file: dwt___66.mtx.gz (447 bytes)
Compressed Harwell-Boeing format file: dwt___66.psa.gz (557 bytes)

Visualizations

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

Structure Plot

Matrix Statistics

Size	Type
66 x 66, 320 entries	pattern symmetric indefinite
Nonzeros
total diagonal below diagonal above diagonal A-A' 320 66 127 127 0
Column Data	Row Data
Average nonzeros per column : 4.8 Standard deviation : 0.64 index nonzeros longest 28 6 shortest 1 2	Average nonzeros per row : 4.8 Standard deviation : 0.64 index nonzeros longest 28 6 shortest 1 2
Bandwidths	Profile Storage
lower 45 upper 45 average |i-j| 6.6 std.dev. 8.6	min max ave. std.dev. lower bandwidth 1 45 9.7 9.6 upper bandwidth 1 45 9.7 9.6 Symmetric skyline storage requirement:640
Heaviest diagonals
offset from main 0 -1 1 -16 16 -15 15 -10 -9 9 nonzeros 66 56 56 15 15 13 13 9 9 9 accumulated percent 20.62 38.12 55.62 60.31 65.00 69.06 73.12 75.94 78.75 81.56 Top 10 out of 41 nonvoid diagonals.
Conditioning
Pattern matrix. No conditioning information.

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