SEARCH Articles Figures Tables Approximation methods second-order energy) First- and second-order reliability methods First-order second moment method FOSM) First-order-second-moment methods Runge-Kutta second-order methods Second Order Reliability Methods Second method Second order difference method Second-Order RK Method Second-order differential equations Runge-Kutta-Nystrom method Second-order group contribution method Solution Methods for Second Order Nonlinear Equations Stopped-flow method second-order conditions Uniform theory for second-order methods