dapei jiang

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  • what's the meaning of "(super-basic)" in VBasis?

    Answered

    Hi, everyone, I'm reading the referance mannual, in Attributes Chapter, I'm confused to VBasis status。 Giving an example, min CX s.t.    a<=  X <= b          X >= 0   1. what's the meaning of -1 (n...

  • Some wonders about the GRBModel::addRange()

    Answered

    Hi, everyone, I have some wonders about the GRBModel::addRange() API,  GRBConstr addRange ( const GRBLinExpr& expr,double lower,double upper,string name="" ) I'm puzzled the argument lower and uppe...

  • how do I change variable type with c++ API?

    Answered

    Hi, everyone, I'm practice with the diet_c++.cpp, I want to change the variable type, I modified the API like below, but the results show it doesn't work, could anyone tell me what mistake I was ta...