# Maliheh Aramon

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Recent activity by Maliheh Aramon
• Hi Ebru,  Have you tried using the GRBModel.addGenConstrPow() method?  To model $$z^{1.5} \leq v$$, you can have: z = model.addVar(name="z")y = model.addVar(name="y") v = model.addVar(name="v")mo...

• Hi Anastasios,  Are you using a Linux machine? Have you checked our How do I use Gurobi with PyCharm (Section: Note for Linux users) article or the Software Installation Guide (for Linux)? You like...

• Hi Aldo,    You see this error because you are trying to sum over Gurobi general expressions (GenExpr). The error traces back to the part below: sum(max_((beta - (stocks @ ret[i])), 0) for i in ra...

• Hi Tobias,  Simplex algorithms are sequential methods and are not amenable to parallelization. Therefore, increasing the number of cores does not have any impact.  Since the barrier algorithm outpe...

• Hi Tobias,  One point before getting into your question: It seems that you are using Gurobi 9.1.1, we always recommend using the latest version of Gurobi which is 9.1.2 right now. The log file sh...

• Hi Veronika,  Some of the presolve procedures such as dual presolve/presolving reductions rely on knowing the feasible region in its entirety. Since it is not possible to know the whole feasible re...

• Hi Tobias,    Have you checkout the article on "Does using more threads make Gurobi faster?"?    Increasing the number of threads does not necessarily speed up the optimization algorithm. How many ...

• Hi Maik,  You can define the decision variables as binary variables $$x_{ij}$$ being equal to 1 if order $$i$$ is delivered by product $$j$$ and to 0 otherwise. Let us further define $$r_i$$ to re...

• Hi Andres,  The Gurobi academic license does not have any restriction. It is the same full-featured version offered to commercial users. The amount of memory that you can access depends on the hard...

• Hi Bahareh,  Do you have the following case where $$u \in [13, 17] \cup \{0\}$$? \[y = \begin{cases} 89 + 8.9 u - 5.95(u-15) & 15 \leq u \leq 17,  \\ 89 + 8.9 u  & 13 \leq u < 15, \\ 0 & u = 0. \en...