function G = ipopt_callback_dg(x,returnStructOnly,prob) if returnStructOnly G = sparse(ones(max(prob.map)+size(prob.G,1),size(prob.A,2))); return end % Compute the nonlinear terms in the constraints [g,geq,dg,dgeq] = fmincon_congp(x,prob); G = [dg';dgeq']; G = sparse(G);