V f in x, might denote the value of V f
V f in x, could denote the value of V f at the k-th time sample, i.e., V f (k) = V f (kTs ). Given that a few of these SARS-CoV-2 Proteins Source variables ought to incorporate values for various forms of electric power sources (WT, PV, and electrical energy in the grid), they may be natively multidimensional. Nonetheless, for computational modeling, x have to be a row vector, hence these natively multidimensional variables are