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416 3. Reference Manual
Examples
Load Analog Insydes.
Read PSpice netlist.
Set up symbolic circuit
equations.
Prepare DAE system for
nonlinear simplifications.
Display complexity
information of the original
system.
Cancel top-level terms in
the equations.
Display complexity
information of the
simplified system. Note
that the number of terms
decreased, while the
number of equations
stayed the same.
In[1]:= DC, ElementValues −> Symbolic,
Value −> {"*" −> {TEMP, TNOM, $q, $k}}]
Out[3]= DAEDC, 27 27
In[4]:= step1 = NonlinearSetup[mnaFull, {II, VLOAD}, {I$VLOAD},
DT −> {Range −>
{{VLOAD, 0., 3.5, 0.5}, {II, 0., 0.001, 0.0002}} }]
Out[4]= DAEDC, 27 27
In[5]:= Statistics[step1]
Number of equations : 27
Number of variables : 27
Length of equations : {4, 4, 3, 3, 2, 3, 2, 3, 8, 8,
3, 2, 3, 9, 9, 3, 2, 3, 9, 9, 3, 2, 3, 4, 4, 3, 2}
Terms with derivatives : 0
Sums in levels : {113, 20}
In[6]:= step2 = CancelTerms[step1, {DT −> {I$VLOAD −> 25.*^−6}}]
Out[6]= DAEDC, 27 27
In[7]:= Statistics[step2]
Number of equations : 27
Number of variables : 27
Length of equations : {1, 2, 2, 2, 2, 2, 1, 2, 2, 1,
1, 1, 2, 2, 1, 2, 1, 2, 2, 1, 2, 1, 2, 2, 1, 2, 1}
Terms with derivatives : 0
Sums in levels : {32, 4}
3.12.4 SimplifySamplePoints
SimplifySamplePoints[func, range, tolerance]
reduces the number of points in range for a given tolerance
specification tolerance
Command structure of SimplifySamplePoints.