Direct search feasible direction (DSFD) is an effective algorithm for solving the constrained non-linearprogrammingproblem, however, it could only find the local optimal solution.
According to integrated supply policy, a non-linearprogramming model was built to analyze integrated suppliers ordering problem under the condition of multiple-supplier.
针对集成化供应策略，建立了用于分析多供应商条件下集成供应商订货问题的非线性规划模型。
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It is transformed ingeniously into a non-linearprogrammingproblem with constraints which can be solved by many optimal methods.