Can we say, at any control problem, control variable u approaches zero as state variable x approaches zero?
It seems the state evolution ode; xdot=f(x,u), is known to satisfy f(0,0)=0, hence f(0,u(0))=0, then can we conclude at any control system, always u(0)=u(x=0)=0, and get the result that...
19 September 2019
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