lb ≤ .5 xᵀQx + bᵀx ≤ ub Without loss of generality, the class stores a symmetric matrix Q.
For a non-symmetric matrix Q₀, we can define Q = (Q₀ + Q₀ᵀ) / 2, since xᵀQ₀x = xᵀQ₀ᵀx = xᵀ*(Q₀+Q₀ᵀ)/2 *x. The first equality holds because the transpose of a scalar is the scalar itself. Hence we can always convert a non-symmetric matrix Q₀ to a symmetric matrix Q.
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template<typename DerivedQ , typename Derivedb > |
| QuadraticConstraint (const Eigen::MatrixBase< DerivedQ > &Q0, const Eigen::MatrixBase< Derivedb > &b, double lb, double ub, std::optional< HessianType > hessian_type=std::nullopt) |
| Construct a quadratic constraint. More...
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| ~QuadraticConstraint () override |
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virtual const Eigen::MatrixXd & | Q () const |
| The symmetric matrix Q, being the Hessian of this constraint. More...
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virtual const Eigen::VectorXd & | b () const |
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HessianType | hessian_type () const |
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bool | is_convex () const |
| Returns if this quadratic constraint is convex. More...
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template<typename DerivedQ , typename DerivedB > |
void | UpdateCoefficients (const Eigen::MatrixBase< DerivedQ > &new_Q, const Eigen::MatrixBase< DerivedB > &new_b, std::optional< HessianType > hessian_type=std::nullopt) |
| Updates the quadratic and linear term of the constraint. More...
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| QuadraticConstraint (const QuadraticConstraint &)=delete |
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QuadraticConstraint & | operator= (const QuadraticConstraint &)=delete |
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| QuadraticConstraint (QuadraticConstraint &&)=delete |
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QuadraticConstraint & | operator= (QuadraticConstraint &&)=delete |
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template<typename DerivedLB , typename DerivedUB > |
| Constraint (int num_constraints, int num_vars, const Eigen::MatrixBase< DerivedLB > &lb, const Eigen::MatrixBase< DerivedUB > &ub, const std::string &description="") |
| Constructs a constraint which has num_constraints rows, with an input num_vars x 1 vector. More...
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| Constraint (int num_constraints, int num_vars) |
| Constructs a constraint which has num_constraints rows, with an input num_vars x 1 vector, with no bounds. More...
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bool | CheckSatisfied (const Eigen::Ref< const Eigen::VectorXd > &x, double tol=1E-6) const |
| Return whether this constraint is satisfied by the given value, x . More...
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bool | CheckSatisfied (const Eigen::Ref< const AutoDiffVecXd > &x, double tol=1E-6) const |
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symbolic::Formula | CheckSatisfied (const Eigen::Ref< const VectorX< symbolic::Variable >> &x) const |
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const Eigen::VectorXd & | lower_bound () const |
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const Eigen::VectorXd & | upper_bound () const |
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int | num_constraints () const |
| Number of rows in the output constraint. More...
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| Constraint (const Constraint &)=delete |
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Constraint & | operator= (const Constraint &)=delete |
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| Constraint (Constraint &&)=delete |
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Constraint & | operator= (Constraint &&)=delete |
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virtual | ~EvaluatorBase () |
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void | Eval (const Eigen::Ref< const Eigen::VectorXd > &x, Eigen::VectorXd *y) const |
| Evaluates the expression. More...
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void | Eval (const Eigen::Ref< const AutoDiffVecXd > &x, AutoDiffVecXd *y) const |
| Evaluates the expression. More...
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void | Eval (const Eigen::Ref< const VectorX< symbolic::Variable >> &x, VectorX< symbolic::Expression > *y) const |
| Evaluates the expression. More...
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void | set_description (const std::string &description) |
| Set a human-friendly description for the evaluator. More...
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const std::string & | get_description () const |
| Getter for a human-friendly description for the evaluator. More...
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std::ostream & | Display (std::ostream &os, const VectorX< symbolic::Variable > &vars) const |
| Formats this evaluator into the given stream using vars for the bound decision variable names. More...
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std::ostream & | Display (std::ostream &os) const |
| Formats this evaluator into the given stream, without displaying the decision variables it is bound to. More...
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std::string | ToLatex (const VectorX< symbolic::Variable > &vars, int precision=3) const |
| Returns a LaTeX string describing this evaluator. More...
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int | num_vars () const |
| Getter for the number of variables, namely the number of rows in x, as used in Eval(x, y). More...
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int | num_outputs () const |
| Getter for the number of outputs, namely the number of rows in y, as used in Eval(x, y). More...
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void | SetGradientSparsityPattern (const std::vector< std::pair< int, int >> &gradient_sparsity_pattern) |
| Set the sparsity pattern of the gradient matrix ∂y/∂x (the gradient of y value in Eval, w.r.t x in Eval) . More...
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const std::optional< std::vector< std::pair< int, int > > > & | gradient_sparsity_pattern () const |
| Returns the vector of (row_index, col_index) that contains all the entries in the gradient of Eval function (∂y/∂x) whose value could be non-zero, namely if ∂yᵢ/∂xⱼ could be non-zero, then the pair (i, j) is in gradient_sparsity_pattern. More...
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bool | is_thread_safe () const |
| Returns whether it is safe to call Eval in parallel. More...
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| EvaluatorBase (const EvaluatorBase &)=delete |
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EvaluatorBase & | operator= (const EvaluatorBase &)=delete |
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| EvaluatorBase (EvaluatorBase &&)=delete |
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EvaluatorBase & | operator= (EvaluatorBase &&)=delete |
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