nag::ad::f07ca Tangent over Adjoint Example Program Results Solution point = -4 7 3 -4 -3 Derivatives calculated: Second order adjoints Computational mode : algorithmic Sum of all Hessian elements of solution x w.r.t. l,d,u and b: sum_ij [d2x/dall2]_ij = -3.499614465755e+00