The Matrix Market

Home Search Browse Resources

FIDAP001: Matrices generated by the FIDAP Package

from set FIDAP, from the SPARSKIT Collection

[Download] [Visualizations] [Matrix Statistics] [Set Information]


Download as

Help: My browser can't read the compressed data files. What now?


Visualizations

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

Structure Plot City Plot
structure plot city plot
3D Interactive City Plot

[ VRML Version 2, gzipped ] 119435 bytes


Matrix Statistics

Click on label to get an explanation.

Size Type
216 x 216, 4374 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
4339 181 2079 2079 0
Column Data Row Data
Average nonzeros per column : 20
Standard deviation : 9

indexnonzeros
longest82 50
shortest5 8

Average nonzeros per row : 20
Standard deviation : 9

indexnonzeros
longest82 50
shortest5 8

Bandwidths Profile Storage
lower65 upper65
average |i-j|20 std.dev.16
minmaxave.std.dev.
lower bandwidth0 64 25 18
upper bandwidth0 64 25 18

Symmetric skyline storage requirement:5528

Heaviest diagonals
offset from main0 -2 2 -4 4 -3 3 -5 5 -6
nonzeros181 149 149 99 99 95 95 89 89 85
accumulated percent 4.17 7.6111.0413.3215.6017.7919.9822.0324.0826.04

Top 10 out of 127 nonvoid diagonals.
Conditioning
Frobenius norm0.68 condition number (est.)6.5e+04
2-norm (est.)0.13 diagonal dominanceno


Set Information

Set FIDAP
Source: Isaac Hasbani (Fluid Dynamics International) Barry Rackner (Minnesota Supercomputer Center)
Discipline:Finite element modeling


The Matrix Market is a service of the Mathematical and Computational Sciences Division / Information Technology Laboratory / National Institute of Standards and Technology.

[ Home ] [ Search ] [ Browse ] [ Resources ]

Last change in this page: Wed Sep 22 13:34:00 US/Eastern 2004 [Comments: ]