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DynamicSystems

  

SystemType

  

check system type

 

Calling Sequence

Parameters

Description

Examples

Calling Sequence

type(sys, System)

type(sys, System(x_1, x_2, ...))

Parameters

sys

-

system object to check

x_i

-

(optional) name; one of tf, zpk, coeff, ss, de, ae, continuous, discrete

Description

• 

The command type(sys, System) returns true if the parameter sys is of type System, false otherwise.

• 

The command type(sys, System(x_1,..., x_n)) returns true if the parameter sys is of  type System and has properties x_1 to x_n.

• 

If parameter x_i is a set of properties then sys has property x_i if it has any of the properties in the set.  An empty set is always false.

• 

The following properties can be used in the parameter x_i:

tf - true if sys is a transfer function representation

zpk - true if sys is a zero-pole-gain representation

coeff - true if sys is a coefficients representation

ss - true if sys is a state-space representation

de - true if sys is a diff-equation representation

ae - true if sys is a algebraic equation representation

continuous - true if sys is a continuous system

discrete - true if sys is a discrete system

Examples

withDynamicSystems:

sysNewSystem3πs2:

typesys,'System'

true

(1)

typesys,'System''ae'

false

(2)

typesys,'System''tf'

true

(3)

typesys,'System''ss'

false

(4)

typesys,'System''tf','ss','coeff'

false

(5)

typesys,'System''tf','ss','coeff'

true

(6)

typesys,'System''continuous'

true

(7)

typesys,'System''discrete'

false

(8)

typesys,'System''tf','continuous'

true

(9)

typesys,'System''tf','discrete'

false

(10)

typesys,'System''tf','ss','coeff','continuous'

true

(11)

typesys,'System'

false

(12)

See Also

DynamicSystems

DynamicSystems[IsSystem]

DynamicSystems[SystemObject]

DynamicSystems[Verify]

 


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