Eigen Command

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This command is used to perform the analysis.

analyze <$type> <$solver> $numEigenvalues

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$numEigenvalues	number of eigenvalues required
$type	optional string detailing type of eigen analysis, -standard of -generalized (default generalized)
$solver	optional string detailing type of solver, -UmfPack, -genBandArpack, -symmBandLapack, -SuperLU (default genBandArpack)

RETURNS:

a tcl string containg eigenvalues.

NOTES:

1. The eigenvectors are stored at the nodes and can be printed out using Node Recorder or the Print command.

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EXAMPLE:

set eigenvalues [eigenvalue 10]; # perform 10 static analysis steps

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Code Developed by: fmk