https://mdobook.github.io/html/ https://mdobook.github.io/html/acknowledgements/ https://mdobook.github.io/html/introduction/ https://mdobook.github.io/html/history/ https://mdobook.github.io/html/models/ https://mdobook.github.io/html/unconstrained/ https://mdobook.github.io/html/constrained/ https://mdobook.github.io/html/derivatives/ https://mdobook.github.io/html/gradfree/ https://mdobook.github.io/html/discrete/ https://mdobook.github.io/html/multiobj/ https://mdobook.github.io/html/sbo/ https://mdobook.github.io/html/convex/ https://mdobook.github.io/html/ouu/ https://mdobook.github.io/html/mdo/ https://mdobook.github.io/html/appendix-mathreview/ https://mdobook.github.io/html/appendix-solvers/ https://mdobook.github.io/html/appendix-quasinewton/ https://mdobook.github.io/html/appendix-functions/ https://mdobook.github.io/html/revision-history/