def A_int(freqs,delt):
    """Calculates the Intermediate Amplitude

    Parameters
    ----------
    freqs : array
        The frequencies in Natural units (Mf, G=c=1) of the waveform
    delt : array
        Coefficient solutions to match the inspiral to the merger-ringdown portion of the waveform

    """
    return (delt[0]+delt[1]*freqs+delt[2]*freqs**2+delt[3]*freqs**3+delt[4]*freqs**4)