3.6.10 GetDAEOptions

Command structure of GetDAEOptions.

Besides the equation system and the list of variables, a DAEObject contains a list of arbitrary options. Use GetDAEOptions to extract these options: GetDAEOptions[dae] returns a list of all options stored in the DAEObject dae. If a second argument is specified and is an option symbol, the value of this option stored in the DAEObject is returned. If it is a list of option symbols, a list of the option values is returned.

The function CircuitEquations automatically adds a number of options to the DAEObject which have been used during equation setup.

To extract the DesignPoint option of a DAEObject it is recommended to use the function GetDesignPoint.

See also: SetDAEOptions, GetEquations, GetMatrix, GetVariables, GetRHS, GetDesignPoint.

Examples

Load Analog Insydes.

In[1]:= <<AnalogInsydes`

Define netlist description of a simple diode rectifier circuit.

In[2]:= cir =
Circuit[
Netlist[
{V0, {1, 0}, Symbolic -> V0,
Value -> 2. Sin[10^6 Time]},
{R1, {2, 0}, Symbolic -> R1, Value -> 100.},
{C1, {2, 0}, Symbolic -> C1, Value -> 1.*^-7},
{D1, {1 -> A, 2 -> C},
Model -> "Diode", Selector -> "Spice"}
]
]

Out[2]=

Set up DAE system.

In[3]:= dae = CircuitEquations[cir,
AnalysisMode -> Transient, ElementValues -> Symbolic]

Out[3]=

Return the list of all options stored in dae.

In[4]:= GetDAEOptions[dae]

Out[4]=

Return special options stored in dae.

In[5]:= GetDAEOptions[dae, {IndependentVariable, InitialTime}]

Out[5]=