hi, everybody i got for homework a pendulum on a cart. i solved the system and got two equations. (m+M)x'' + M L theta'' = F x'' + L theta'' + g* theta = 0 F = 1000 N, m = 500 kg, M = 1250 kg, l = 10m i know how to put them in state space and solve them with SS block in simulink.but i don't know how to solve the system with ode23. there are no initial conditions stated in a task, i guess there are zero. i understand this sintax function xdot = vdpol(t,x) xdot = [x(1).*(1-x(2).^2)-x(2); x(1)] t0 = 0; tf = 20; x0 = [0 0.25]'; % Initial conditions [t,x] = ode23('vdpol',t0,tf,x0); plot(t,x) but dont know how to use it on those eq.