[Nonlinear.SymbolicAD] simplify quadratic functions if possible #2685
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odow
changed the title
|
Now this would help a bunch of #2553 julia> op(head, args...) = MOI.ScalarNonlinearFunction(head, Any[args...])
op (generic function with 1 method)
julia> f = op(:/,
op(:+,
op(:-,
op(:+,
op(:^, MOI.VariableIndex(9), (2)),
op(:^, MOI.VariableIndex(6), (2)),
op(:^, MOI.VariableIndex(7), (2)),
),
0.0,
),
op(:-,
op(:+,
op(:^, MOI.VariableIndex(9), (2)),
op(:^, MOI.VariableIndex(6), (2)),
op(:^, MOI.VariableIndex(7), (2)),
),
0.0,
),
op(:+,
op(:-,
op(:+,
MOI.VariableIndex(6),
),
),
),
op(:+,
op(:-,
op(:+,
MOI.VariableIndex(7),
),
),
),
op(:+,
op(:+,
MOI.VariableIndex(6),
),
),
op(:+,
op(:+,
MOI.VariableIndex(7),
),
),
),
2.0,
)
/(+(-(+(^(MOI.VariableIndex(9), (2)), ^(MOI.VariableIndex(6), (2)), ^(MOI.VariableIndex(7), (2))), 0.0), -(+(^(MOI.VariableIndex(9), (2)), ^(MOI.VariableIndex(6), (2)), ^(MOI.VariableIndex(7), (2))), 0.0), +(-(+(MOI.VariableIndex(6)))), +(-(+(MOI.VariableIndex(7)))), +(+(MOI.VariableIndex(6))), +(+(MOI.VariableIndex(7)))), 2.0)
julia> MOI.Nonlinear.SymbolicAD.simplify(f)
0.0 + 1.0 MOI.VariableIndex(6)² + 1.0 MOI.VariableIndex(7)² + 1.0 MOI.VariableIndex(9)² |
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