def is2rc(inv_sin):
return numpy.sin(numpy.array(inv_sin)*numpy.pi/<NUM_LIT:2>)<EOL>
Convert inverse sine parameters to reflection coefficients.

    :param inv_sin: inverse sine parameters
    :return: reflection coefficients

    .. seealso::  :func:`rc2is`, :func:`poly2rc`, :func:`ac2rc`, :func:`lar2rc`.

    :Reference: J.R. Deller, J.G. Proakis, J.H.L. Hansen, 
        "Discrete-Time Processing of Speech Signals", Prentice Hall, Section 7.4.5.