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scipy.signal.lti.

# step

lti.step(X0=None, T=None, N=None)

  Return the step response of a continuous-time system.

  Parameters:
    X0 array_like, optional

      Initial state-vector (default is zero).

    T array_like, optional

      Time points (computed if not given).

    N int, optional

      Number of time points to compute if T is not given.

  Returns:
    T 1D ndarray

      Output time points.

    yout 1D ndarray

      Step response of system.

  See also

  `step`

    Step response of continuous-time LTI systems.