nag::ad::e01bg Tangent Example Program Results Derivatives calculated: First order tangents Computational mode : algorithmic fint = 9.666778e-02 dint = 2.009028e-01 Sum of all Jacobian elements of (fint, dint) w.r.t. interpolation point xint : sum_i [d(fint, dint) / d(xint)]_i = 2.671589e-02