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324 3. Reference Manual
ErrorFunction
ErrorFunction −> func specifies the function to be used for calculating the error of an approximated
eigenvalue with respect to the reference solution. The following values are allowed:
Automatic
LogError
DirectedLogError
select the error function according to the properties of the
eigenvalue of interest: use LogError for real eigenvalues
and DirectedLogError for complex ones
yields the logarithmic difference of the magnitudes of two
eigenvalues; most suitable for real eigenvalues
similar to LogError, but takes into account the phases of
complex numbers; most suitable for complex eigenvalues
Values for the ErrorFunction option.
FrequencyVariable
ApproximateDeterminant needs to know the symbol which represents the complex frequency in
order to be able to decompose the system of circuit equations
dae into the matrices A and B. With FrequencyVariable −> Automatic, the symbol is determined
automatically from the status information stored in dae. You can specify the frequency variable
manually with FrequencyVariable −> var.
GEPSolver
With GEPSolver −> func, you can select the GEP solver ApproximateDeterminant uses to calculate
the initial reference solution. Possible option values are:
GeneralizedEigensystem
LREigenpair
use the QZ algorithm for computing the reference solution
use the Jacobi orthogonal correction method for computing
the reference solution
Values for the GEPSolver option.
GEPSolverOptions
With GEPSolverOptions −> opts, you can specify a list of option settings that will be passed to the
selected GEP solver, for example:
GEPSolverOptions −> {MaxResidual −> 1.*^−7,
MaxIterations −> 100}