Example of a well-fitted line in the case of solar spectrum for the Mn i line at 6016 Å. Upper panel: eleven synthetic spectra with different abundances in steps of 0.04 dex (blue lines). The positions of the hyperfine components are indicated at the top. The difference between the observed spectrum and the synthetic spectra is plotted in the lower panel with the best abundance spectrum plotted as a red line in both the upper and lower panel. The inset presents the χ² fit to determine the best abundance value expressed as log ϵ_X (shown as a red dot); the 22 blue dots are the χ² values for all the spectra created by SME.