The time-domain approach is a unified method for analyzing and designing systems
modeled by either modern or classical approach. Time-domain response analysis functions
below can be used to study the output behavior of a linear time-invariant system driven
by system inputs and initial states.

The step or impulse response plots the system response with respect to time when the
system input is a step or impulse function, respectively.
The initial response plots the system response to the
initial state **x0** with zero-input. The simulation response plots the system response to any
input and initial state specified by the user.
The initial state of zero is assumed by default.

Function | Description | ||
---|---|---|---|

Step response | Plot step response of a system in time domain. | ||

Impulse response | Plot impulse response of a system in time domain. | ||

Initial response | Plot time domain initial response of a system represented in state space. | ||

Simulation response | Simulate system response to an arbitrary input. |