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scipy.signal.dlti.

# step

dlti.step(x0=None, t=None, n=None)

  Return the step response of the discrete-time `dlti` system.

  Parameters:
    x0 array_like, optional

      Initial state-vector. Defaults to zero.

    t array_like, optional

      Time points. Computed if not given.

    n int, optional

      The number of time points to compute (if t is not given).

  Returns:
    tout ndarray

      Output time points, as a 1-D array.

    yout tuple of ndarray

      Step response of system. Each element of the tuple represents the output of the system based on a step response to each input.

  See also

  `dstep`

    Step response of discrete-time LTI systems.