# Voigt profile based on HTP.
    # Input parameters:
    #   sg0: Unperturbed line position in cm-1 (Input).
    #   GamD: Doppler HWHM in cm-1 (Input)
    #   Gam0: Speed-averaged line-width in cm-1 (Input).       
    #   sg: Current WaveNumber of the Computation in cm-1 (Input).

def PROFILE_VOIGT(sg0,GamD,Gam0,sg):
    """
    # Voigt profile based on HTP.
    # Input parameters:
    #   sg0: Unperturbed line position in cm-1 (Input).
    #   GamD: Doppler HWHM in cm-1 (Input)
    #   Gam0: Speed-averaged line-width in cm-1 (Input).       
    #   sg: Current WaveNumber of the Computation in cm-1 (Input).
    """
    return PROFILE_HTP(sg0,GamD,Gam0,cZero,cZero,cZero,cZero,cZero,sg)