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• Details.
• Color indicates regions of the simplex in which the cost function is either nonconvex or nonmonotone (negative demands).

      --------------------------------------------------------------
 2.0  |   75      74      72      65      59      55      52      49
 1.6  |   75      74      73      68      62      57      53      50
 1.2  |           74      73      72      65      59      55      52
 0.8  |           74      73      72      69      62      57      53
 0.4  |                   73      72      72      65      60      55
 0.0  |                   74      73      72      69      62      57
-0.4  |                           72      72      71      66      60
-0.8  |                                   72      71      70      63
      --------------------------------------------------------------
        -0.8    -0.4     0.0     0.4     0.8     1.2     1.6     2.0