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Counting the number of FLOPS

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.