LOCK1074: Structural engineering matrices (unassembled)
Gyro cradle assembly

from set LOCKHEED, from the Harwell-Boeing Collection

Note: The previously available version of this matrix in Matrix Market format refects an assembly which differs from what the contributor intended and has been withdrawn. Please discard it if you have taken a copy. The Harwell-Boeing file remains, but requires proper interpretation.

Download as

Matrix Market format not available.
Compressed Harwell-Boeing format file: lock1074.pse.gz (5808 bytes)

Visualizations

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

Structure Plot

Matrix Statistics

Size	Type
1074 x 1074, 5760 entries	pattern symmetric positive definite
Nonzeros
total diagonal below diagonal above diagonal A-A' 51588 1038 25275 25275 0
Column Data	Row Data
Average nonzeros per column : 48 Standard deviation : 16 index nonzeros longest 805 96 shortest 1 0	Average nonzeros per row : 48 Standard deviation : 16 index nonzeros longest 805 96 shortest 1 0
Bandwidths	Profile Storage
lower 594 upper 594 average |i-j| 59 std.dev. 1.2e+02	min max ave. std.dev. lower bandwidth 0 593 96 1.5e+02 upper bandwidth 0 593 96 1.5e+02 Symmetric skyline storage requirement:103323
Heaviest diagonals
offset from main 0 -1 1 -2 2 -3 3 -4 4 -5 nonzeros 1038 962 962 886 886 810 810 734 734 658 accumulated percent 2.01 3.88 5.74 7.46 9.18 10.75 12.32 13.74 15.16 16.44 Top 10 out of 573 nonvoid diagonals.
Conditioning
Pattern matrix. No conditioning information.

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Last change in this page: Wed Sep 22 13:33:43 US/Eastern 2004 [Comments: ]