【Gurobi】Gurobi的MVar或者矩阵形式的变量处理方法小例子

$$\begin{array}{r}Ax=1\end{array}$$

$$\begin{array}{r}A=\left[\begin{array}{cc}2& 1\\ 1& 3\end{array}\right]\end{array}$$

from gurobipy import *
import numpy as np

model = Model()

A = np.ones([2, 2])

A[0][0] = 2
A[1][1] = 3

b = np.ones([2, 1])

x = model.addVars(2, 1, vtype=GRB.BINARY)

model.update()

x = MVar(model.getVars())

model.addConstr(A @ x == 1)

model.write('A.lp')
print(A)