คำศัพท์คณิตศาสตร์
Step 2.5z = {3,5}.
Step 3.k= 3 and a3 = C23 = 30. Label node 3 with [30, 2J. Set i = 3, and repeat step 2.
Step 2.53 = (2) (because C34 = C35 = 0). Go to step 4 to backtrack.
Step 3.Backtracking. The label [30,2J at node 3 gives the immediately preceding node r = 2.
Remove node 3 from further consideration in this iteration by crossing it out. Set
i = r = 2, and repeat step 2.