def LorentzTerm(w, w0, gamma, s):
    """
	A single term in a Lorentz Oscillator sum.

	Parameters
	----------

	w:		array-like, frequency at which to evaluate the response (rad/s)

	w0:		scalar, resonance frequency (rad/s)

	gamma:	scalar, width of the resonance (rad/s)

	s:		scalar, strength of the response (unitless)
	"""
    res = s * w0 ** 2 / (w0 ** 2 - w ** 2 - 1.0j * gamma * w)
    return res
