CEGB2802: Structural engineering matrices (unassembled)
Turbine blade

from set CEGB, 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this matrix in Matrix Market format refects an assembly which differs from what the contributor intended and has been withdrawn.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: cegb2802.pse.gz (8634 bytes)

Visualizations

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

Structure Plot

Matrix Statistics

Size	Type
2802 x 2802, 6342 entries	pattern symmetric positive definite
Nonzeros
total diagonal below diagonal above diagonal A-A' 277362 2694 137334 137334 0
Column Data	Row Data
Average nonzeros per column : 99 Standard deviation : 38 index nonzeros longest 37 153 shortest 2587 0	Average nonzeros per row : 99 Standard deviation : 38 index nonzeros longest 37 153 shortest 2587 0
Bandwidths	Profile Storage
lower 252 upper 252 average |i-j| 63 std.dev. 48	min max ave. std.dev. lower bandwidth 0 251 1.2e+02 38 upper bandwidth 0 251 1.2e+02 38 Symmetric skyline storage requirement:328404
Heaviest diagonals
offset from main 0 -1 1 -2 2 -3 3 -4 4 -5 nonzeros 2694 2644 2644 2594 2594 2544 2544 2518 2518 2492 accumulated percent 0.97 1.92 2.88 3.81 4.75 5.67 6.58 7.49 8.40 9.30 Top 10 out of 493 nonvoid diagonals.
Conditioning
Pattern matrix. No conditioning information.

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Last change in this page: Wed Sep 22 13:33:30 US/Eastern 2004 [Comments: ]