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Table 1 Iterations history of the rSQP method with primal-dual active set strategy

From: Optimal control of multiphase steel production

Iter

\(J_{k}\)

\(e_{k}\)

\(\tau _{k}\)

#PDAS-loops

1

21.8504

0.94

0.22

3

2

20.3691

0.45

0.33

4

3

20.3517

0.0085

0.0938

3

4

20.3515

140.7

510−4

1