nag::ad::d02pf Tangent Example Program Results Derivatives calculated: First order tangents Computational mode : algorithmic Solution computed with required tolerance 1.000000e-04 y1 = 2.962625e-05 y2 = 9.999774e-01 Sum of all Jacobian elements of solution vector y w.r.t. problem parameters : sum_ij [dy/dr]_ij = 6.282893e+00