DWT 87: Everstine's collection
Tower

from set DWT, from the Harwell-Boeing Collection

The finite element model that generated this matrix contains 87 nodes and 228 beam 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___87.mtx.gz (733 bytes)
Compressed Harwell-Boeing format file: dwt___87.psa.gz (779 bytes)

Visualizations

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

Structure Plot

Matrix Statistics

Size	Type
87 x 87, 541 entries	pattern symmetric indefinite
Nonzeros
total diagonal below diagonal above diagonal A-A' 541 87 227 227 0
Column Data	Row Data
Average nonzeros per column : 6.2 Standard deviation : 2.3 index nonzeros longest 67 13 shortest 31 2	Average nonzeros per row : 6.2 Standard deviation : 2.3 index nonzeros longest 67 13 shortest 31 2
Bandwidths	Profile Storage
lower 64 upper 64 average |i-j| 16 std.dev. 22	min max ave. std.dev. lower bandwidth 1 64 27 24 upper bandwidth 1 64 27 24 Symmetric skyline storage requirement:2336
Heaviest diagonals
offset from main 0 -2 -1 1 2 -3 3 -61 61 -6 nonzeros 87 36 36 36 36 24 24 16 16 11 accumulated percent 16.08 22.74 29.39 36.04 42.70 47.13 51.57 54.53 57.49 59.52 Top 10 out of 103 nonvoid diagonals.
Conditioning
Pattern matrix. No conditioning information.

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Last change in this page: Wed Sep 22 13:33:34 US/Eastern 2004 [Comments: ]