evaluate the values of the Jacobian for the position corresponding to the sparsity structure of the Jacobian of a given AMPL problem
val = ampl_eval_spst_g_val(asl, x)
the point where we evaluate the gradient and the Jacobian
a structure which handles the pointer to the problem
a vector of values of the Jacobian evaluated at the positions corresponding to the sparsity structure of the Jacobian
Evaluate the values of the Jacobian for the position corresponding to the sparsity structure of the Jacobian of a given AMPL problem. Be careful, the "matrix" return corresponds to the transpose of the Jacobian. It has [nb_constr x nb_var] as dimensions.