Boeing/pwtk

PRESSURIZED WIND TUNNEL -- STIFFNESS MATRIX
Name pwtk
Group Boeing
Matrix ID 369
Num Rows 217,918
Num Cols 217,918
Nonzeros 11,524,432
Pattern Entries 11,634,424
Kind Structural Problem
Symmetric Yes
Date 1995
Author R. Grimes
Editor T. Davis
Structural Rank 217,918
Structural Rank Full true
Num Dmperm Blocks 1
Strongly Connect Components 1
Num Explicit Zeros 109,992
Pattern Symmetry 100%
Numeric Symmetry 100%
Cholesky Candidate yes
Positive Definite yes
Type real
Download MATLAB Rutherford Boeing Matrix Market
Notes