contrss

controllable part

Calling Sequence

[slc]=contrss(sl [,tol])

Arguments

:sl linear system ( syslin list) : :tol is a threshold for controllability (see contr). default value

is sqrt(%eps).

:

Description

returns the controllable part of the linear system sl = (A,B,C,D) in state-space form.

Examples

A=[1,1;0,2];B=[1;0];C=[1,1];sl=`syslin`_('c',A,B,C);  //Non minimal
slc=contrss(sl);
sl1=`ss2tf`_(sl);sl2=`ss2tf`_(slc);      //Compare sl1 and sl2

See Also

• cont_mat controllability matrix
• ctr_gram controllability gramian
• cont_frm transfer to controllable state-space
• contr controllability, controllable subspace, staircase