**Extras: Steady-State Error - Control Tutorials for MATLAB**
https://ctms.engin.umich.edu/CTMS/index.php?aux=Extras_Ess

Steady-state error is defined as the difference between the input (command) and the output of a system in the limit as time goes to infinity (i.e. when the response has reached steady state). The steady-state error will depend on the type of input (step, ramp, etc.) as well as the system type (0, I, or II). Note: Steady-state error analysis is only useful for stable systems. …

Steady-state error is defined as** the difference between the input (command) and the output of a system in the limit as time goes to infinity (i.e. when the response has reached steady state).** The** steady-state error will depend on the type of input (step, ramp, etc.) as well as the system type (0, I, or II).** Note: Steady-state error analysis is only useful for stable systems. …

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