3 Runge-Kutta Methods - IIT
math.iit.edu/~fass/478578_Chapter_3.pdf3.1 Second-Order Runge-Kutta Methods As always we consider the general first-order ODE system y0(t) = f(t,y(t)). (42) Since we want to construct a second-order method, we start with the Taylor expansion y(t+h) = y(t)+hy0(t)+ h2 2 y00(t)+O(h3). The first derivative can be replaced by the right-hand side of the differential equation