abcd - State-space matrices (original) (raw)
Scilab 5.3.3
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Please note that the recommended version of Scilab is 2026.0.1. This page might be outdated.
See the recommended documentation of this function
Scilab help >> CACSD > abcd
Calling Sequence
Arguments
sl
linear system (syslin list) in state-space or transfer form
A,B,C,D
real matrices of appropriate dimensions
Description
returns the A,B,C,D matrices from a linear system Sl.
Utility function. For transfer matrices Sl is converted into state-space form by tf2ss.
The matrices A,B,C,D are the elements 2 to 5 of the syslin list Sl, i.e. [A,B,C,D] = Sl(2:5) .
Examples
A=diag([1,2,3]);B=[1;1;1];C=[2,2,2]; sys=syslin('c',A,B,C); sys("A") sys("C") [A1,B1,C1,D1]=abcd(sys); A1 systf=ss2tf(sys); [a,b,c,d]=abcd(systf) spec(a) cb-CB cab-CAB