Clarification question to close GH9042. Which of the minimizer methods (CG, BFGS, Newton-CG, L-BFGS-B, TNC, SLSQP, dogleg, trust-ncg, trust-krylov,trust-exact and trust-constr): - require a *callable* jacobian? - are satisfied with a jacobian estimated by finite differences? -- _____________________________________ Dr. Andrew Nelson _____________________________________