CVXPY
Minimize
  power(x + -y, 2.0)
Subject To
Bounds
 x free
 y free
End
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AFTER COMPILATION
Minimize
 [ 2 C0 ^2 ] / 2 
Subject To
 R0: - C0 + C1 - C2 = 0
Bounds
 C0 free
 C1 free
 C2 free
End
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GUROBI
Minimize
 [ 2 x ^2 - 4 x * y + 2 y ^2 ] / 2 
Subject To
Bounds
 x free
 y free
End