sentences:  The standard method for calculating the SHGC also uses a more realistic wavelength-by-wavelength method, rather than just providing a coefficient for a single wavelength like the shading coefficient does.Though the shading coefficient is still mentioned in manufacturer product literature and some industry computer software, it is no longer mentioned as an option in industry-specific texts or model building codes.Aside from its inherent inaccuracies, another shortcoming of the SC is its counter-intuitive name, which suggests that high values equal high shading when in reality the opposite is true.