template<class Dvector, class ADvector, class FG_eval>

virtual bool CppAD::ipopt::solve_callback< Dvector, ADvector, FG_eval >::eval_h	(	Index	n,
		const Number *	x,
		bool	new_x,
		Number	obj_factor,
		Index	m,
		const Number *	lambda,
		bool	new_lambda,
		Index	nele_hess,
		Index *	iRow,
		Index *	jCol,
		Number *	values
	)

inlinevirtual

Evaluate the Hessian of the Lagragian.

The Hessian of the Lagragian

The Hessian of the Lagragian is defined as

$H(x, \sigma, \lambda ) = \sigma \nabla^2 f(x) + \sum_{i=0}^{m-1} \lambda_i \nabla^2 g(x)_i$

Parameters

[in]	n	is the dimension of the argument space for g(x); i.e., must be equal nx_.
	x	if values is not NULL, x is a vector of size nx_ containing the point at which to evaluate the Hessian of the Lagragian.
[in]	new_x	is false if the previous call to any one of the Evaluation Methods used the same value for x.
[in]	obj_factor	the value $\sigma$ multiplying the Hessian of f(x) in the expression for The Hessian of the Lagragian.
[in]	m	is the dimension of the range space for g(x); i.e., must be equal to ng_.
[in]	lambda	if values is not NULL, lambda is a vector of size ng_ specifing the value of $\lambda$ in the expression for The Hessian of the Lagragian.
[in]	new_lambda	is true if the previous call to eval_h had the same value for lambda and false otherwise. (Not currently used.)
[in]	nele_hess	is the number of possibly non-zero elements in the Hessian of the Lagragian; i.e., must be equal to nx_*(nx_+1)/2.
	iRow	if values is not NULL, iRow is not defined. if values is NULL, iRow is a vector with size nele_hess. The input value of its elements does not matter. On output, For `k = 0 , ... , nele_hess-1, iRow[k]` is the base zero row index for the k-th possibly non-zero entry in the Hessian fo the Lagragian.
	jCol	if values is not NULL, jCol is not defined. if values is NULL, jCol is a vector with size nele_hess. The input value of its elements does not matter. On output, For `k = 0 , ... , nele_hess-1, jCol[k]` is the base zero column index for the k-th possibly non-zero entry in the Hessian of the Lagragian.
	values	if values is not NULL, it is a vector with size nele_hess. The input value of its elements does not matter. On output, For `k = 0 , ... , nele_hess-1, values[k]` is the value for the k-th possibly non-zero entry in the Hessian of the Lagragian.

Returns: The return value is always true; see Evaluation Methods.

Definition at line 960 of file solve_callback.hpp.