This is an example from a static analysis of an automobile chassis.
The plot shows the sparsity pattern of the stiffness matrix. The
matrix is symmetric, so only the lower half is shown. Its order is
44609, and 99.95% of its elements are zero. This particular matrix is
known as
BCSSTK32 from the
Harwell-Boeing collection. The
MatrixMarket web site has a large collection of sparse matrices.
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Sparse Matrix Example
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