Values discussed in the section on the LBE, such as *w*, *c*, and the subscript *i,* all made reference to properties of this lattice. For D2Q9, *w*_{i} = {4/9, 1/9, 1/9, 1/9, 1/9, 1/36, 1/36, 1/36, 1/36} for *i* ={0–8}. Since this is a square lattice, *c* = 1 and *c*_{i} = (0,0),(1,0), (0,1),(−1,0),(0,−1),(1,1),(−1,1),(−1,−1),(1,−1) for *i* = {0–8}. In the standard LBE case, *c*_{s}^{2} = 1/3.