DynamicSystems
IsSystem
verify the content of a system object
Calling Sequence
Parameters
Description
Examples
IsSystem(sys)
sys
-
System; system object to verify
The IsSystem command checks the validity of the system object.
If sys is a valid system object, return true. If sys contains errors, return false.
To determine the problem with a system that fails, use DynamicSystems[Verify].
with⁡DynamicSystems:
sys1 ≔ NewSystem⁡:
PrintSystem⁡sys1
Algebraic Equationcontinuous1 output(s); 1 input(s)inputvariable=u⁡toutputvariable=y⁡tae=y⁡t=u⁡t
IsSystem⁡sys1
true
sys2 ≔ NewSystem⁡ss3+5⁢s2+7⁢s+6:
Modify the tf member of sys2 to make it nonrational polynomial (in s).
sys2:-tf ≔ ⅇss3+5⁢s2+7⁢s+6:
PrintSystem⁡sys2
Transfer Functioncontinuous1 output(s); 1 input(s)inputvariable=u1⁡soutputvariable=y1⁡stf1,1=ⅇss3+5⁢s2+7⁢s+6
IsSystem⁡sys2
tf_mimo_z ≔ Matrix⁡1z2,z2z3+5⁢z2+7⁢z+6,1z,cz2+a⁢z+b:
sys3 ≔ NewSystem⁡tf_mimo_z,discrete,sampletime=0.001,systemname=Sample discrete MIMO system:
PrintSystem⁡sys3
Transfer Functiondiscrete; sampletime = .1e-2systemname=Sample discrete MIMO system2 output(s); 2 input(s)inputvariable=u1⁡z,u2⁡zoutputvariable=y1⁡z,y2⁡ztf1,1=1z2tf2,1=1ztf1,2=z2z3+5⁢z2+7⁢z+6tf2,2=cz2+a⁢z+b
IsSystem⁡sys3
See Also
DynamicSystems[Verify]
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