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406 3. Reference Manual
An example for a user-defined simulation and error function and of the corresponding call to
NonlinearSetup is given in the example section below.
Instead of specifying the maximum allowed error for output variables for each call to the nonlinear
simplifications routines separately, you can specify global maximum errors for output variables using
the MaxError argument. These values are used if no error value is given in the call to the nonlinear
simplification routine. The value of this argument has to be a list of rules of the form outvar −> error.
AC mode specifications
Range−>{paramsweep, freqlist, sourceval}
paramsweep must be a subset of the sweep given in the DT
settings, freqlist is a list of frequency points and sourceval is
a list of replacement rules for all AC sources
SimulationFunction−>simfct
Settings for AC mode.
ErrorFunction−>errfct
MaxError−>errlist
simulation function used for AC analysis; default value:
DefaultACSimulation
error function used for AC analysis; default value:
DefaultACError
Maximum error specification for the output variables;
default value: {}
SimulationFunction, ErrorFunction, and MaxError are optional, whereas Range is a required
argument.
If you specifiy AC settings you have to specify DT settings, too. The parameter sweep settings
paramsweep must be a subset of the parameter sweep given in the DT settings.
The default AC simulation function is called DefaultACSimulation. This function calls ACAnalysis
(Section 3.7.3) to perform the numerical calculation. DefaultACSimulation inherits almost all options
from ACAnalysis.
Besides the default simulation function you can define your own AC simulation function and specify
it as SimulationFunction in the AC mode settings for NonlinearSetup. During the setup and the
nonlinear simplifications this function will be called with the following arguments:
simfct[dae_, refsim_List:{}, opts___]
Pattern for a user-defined AC simulation function.
Here, dae is a Transient DAEObject, refsim is the list of numerical reference values and opts are
additional options.