def lar2rc(g):
assert numpy.isrealobj(g), '<STR_LIT>'<EOL>return -numpy.tanh(-numpy.array(g)/<NUM_LIT:2>)<EOL>
Convert log area ratios to reflection coefficients.

    :param g:  log area ratios
    :returns: the reflection coefficients

    .. seealso: :func:`rc2lar`, :func:`poly2rc`, :func:`ac2rc`, :func:`is2rc`.

    :References:
       [1] J. Makhoul, "Linear Prediction: A Tutorial Review," Proc. IEEE,  Vol.63, No.4, pp.561-580, Apr 1975.