CVXPY
Minimize
  [1. 2.] @ A @ [1. 2.]
Subject To
Bounds
 0.0 <= A
End
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AFTER COMPILATION
Minimize
  C0 + 2 C1 + 2 C2 + 4 C3
Subject To
 R0: - C0 <= 0
 R1: - C1 <= 0
 R2: - C2 <= 0
 R3: - C3 <= 0
Bounds
 C0 free
 C1 free
 C2 free
 C3 free
End
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GUROBI
Minimize
  A[0,0] + 2 A[0,1] + 2 A[1,0] + 4 A[1,1]
Subject To
Bounds
End