scipy.signal.step2

scipy.signal.step2(system, X0=None, T=None, N=None, **kwargs)

Step response of continuous-time system.

This function is functionally the same as scipy.signal.step, but it uses the function scipy.signal.lsim2 to compute the step response.

Parameters :

system : an instance of the LTI class or a tuple describing the system.

The following gives the number of elements in the tuple and the interpretation:

• 2 (num, den)
• 3 (zeros, poles, gain)
• 4 (A, B, C, D)

X0 : array_like, optional

Initial state-vector (default is zero).

T : array_like, optional

Time points (computed if not given).

N : int

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

kwargs : :

Additional keyword arguments are passed on the function scipy.signal.lsim2, which in turn passes them on to scipy.integrate.odeint. See the documentation for scipy.integrate.odeint for information about these arguments.

Returns :

T : 1D ndarray

Output time points.

yout : 1D ndarray

Step response of system.

See also

scipy.signal.step

Notes

New in version 0.8.0.