Therefore, only one determinant of size N/2 is involved in each calculation of R and update of the inverse matrix. The scaling of each transition then becomes:
O_R(N/2)+O_\mathrm{inverse}(N^2/4)and the time scaling when the transitions for all N particles are put together:
O_R(N^2/2)+O_\mathrm{inverse}(N^3/4)which gives the same reduction as in the case of moving all particles at once.