This is Lorentz Equations. You can use Solve to solve (plot) the various solutions and play around with methods and parameters. With "Demo" you get another demo.
This is The Pendulum Equation. You can use Solve to solve (plot) the various solutions. Try the keys: "s", "b" and "c" to change the initial values etc. With "Demo" you get another demo.
This is Rössler Equations. You can use Solve to solve (plot) the various solutions and play around with methods and parameters. Try to change the value of a. With "Demo" you get another demo.