This correction method simply fits a zero-intercept line to the data shown in figure , resulting in the fit shown in figure 1B. Since it does not include per-element, additive reference state corrections, "problem 1" described in the previous section is eliminated. More specifically, it is clear from equation 6, that as the corner of the phase diagram is approached and E DFT_system approaches E DFT_reference , the corrected formation energy, ∆E formation , approaches zero regardless of the value of the correction constant, which is the only physically valid behavior.