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3.12 Nonlinear Simplification Techniques 413
must contain an error bound value for each analysis mode and each output variable, i.e. it has to be
a list of the form
{mode 1 −> {var 1 −> bound 1 , }, }
Variables for which an error value has been specified in the call to NonlinearSetup can be omitted.
If error specifications have been given for each analysis mode and each output variable in the call
to NonlinearSetup, the maxerrors specification can be omitted completely. If the error caused by a
simplification exceeds any of the maximum errors given in the error list, the simplification is undone.
Note that the error is measured by the error function specified in the call to NonlinearSetup.
Removal of terms is done in the level given by the option Level (see below).
CancelTerms returns the simplified DAEObject. All settings for nonlinear simplifications stored in
the original system are added to the returned DAEObject, too. This means that you do not have to
call NonlinearSetup again on the new system in order to apply subsequent simplifications.
Note that CancelTerms reduces the number of terms only.
(Section 3.12.2) to reduce the number of equations.
CancelTerms provides the following options:
Use CompressNonlinearEquations
option name
default value
Clusterbound −1 logarithmic bound for cluster calculation
Errorbound 3 number of successive error-bound violations
before the algorithm terminates
Level 0 level in which to remove terms
Protocol
Inherited[AnalogInsydes]
standard Analog Insydes protocol
specification (see Section 3.14.5)
Ranking Automatic method to use for ranking
RecordCancellations True whether to record term cancellations
Options for CancelTerms.
After removal of one or more terms a numerical simulation is performed. Comparing the result to
a reference calculation yields the error on the output variables.
See also: NonlinearSetup (Section 3.12.1), ShowCancellations (Section 3.12.7),
ShowLevel (Section 3.12.6), Statistics (Section 3.6.17).
Options Description
A detailed description of all CancelTerms options is given below in alphabetical order: