[scilab-Users] Bode Diagram and how can I plot those functions on different graph windows ?

[Samuel Gougeon]

Le 19/09/2011 19:37, Reinaldo a écrit :
> I try to understand the help of /syslin/ function, but it is hard !
> The description is:
> State-space representation:
> sl=syslin(dom,A,B,C  [,D  [,x0]  ])
> 	<scilab://scilab.execexample/> 	<scilab://scilab.editexample/> 	
>
> represents the system :
> s.x  = A.x + B.u
> y = C.x + D.u
> x(0) = x0
> I don't know how to correspond those [ [ ] ] to that linear system.

In this context, this means that D (and even x0) are optionnal. They are 
not compulsory.
That is to say, you can call

sl=syslin(dom,A,B,C,D))

or even

sl=syslin(dom,A,B,C,D,x0)

but not

sl=syslin(dom,A,B,C,x0)

because here [[] ] are nested
(to allow also this last synopsis, the notation would have been instead

sl=syslin(dom,A,B,C  [,D][,x0])

This is a general and common convention

HTH
Regards
Samuel

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