Zahra Hoobakht
- 合計アクティビティ 10
- 前回のアクティビティ
- メンバー登録日
- フォロー 0ユーザー
- フォロワー 0ユーザー
- 投票 0
- サブスクリプション 4
アクティビティの概要
Zahra Hoobakhtさんの最近のアクティビティ-
Zahra Hoobakhtさんが投稿を作成しました:
non zero variable
回答済みHi I have a variable that is in the interval of -1 and 1 but it cannot be zero. I would be appreciate if you help me to define the constraints properly. m = gp.Model()phi_0 = m.addVar(vtype=gp.GRB...
-
Zahra Hoobakhtさんがコメントを作成しました:
Hi Jonasz thanks for your response. I narrow down my objective function to the numerator of trace which is 29*R1+17*R2 in which R1 and R2 are symbols coming from sympy library. I want to solve a mi...
-
Zahra Hoobakhtさんが投稿を作成しました:
Unable to convert argument to an expression
回答済みHi I am trying to define my objective function but I am getting "Unable to convert argument to an expression" error. I am using the Sympy library because I need to get Hessian of some matrices bas...
-
Zahra Hoobakhtさんが投稿を作成しました:
unbdray
回答済みHi my second stage problem is infeasible. I would appreciate it if you could say how can I extract unbounded rays for the dual of the second stage problem? I write dual of it and I used Dualproble...
-
Zahra Hoobakhtさんがコメントを作成しました:
Hi Steven, the error is Unable to retrieve attribute 'ObjVal' of Master problem and when I see the .lp result it because the feasibility cut I added is not feasible itself. (Z is a positive value) ...
-
Zahra Hoobakhtさんが投稿を作成しました:
Unbdray does not give me correct answer
進行中Hello, I am trying to solve a problem in two ways with and without Benders decomposition. extract unbdrays and add them to my Master problem but when I extract them and put them into (w)(d-Bx)=<0 i...