Yes and yes.I am just about to study the Friedman equations. Are they just simple ordinary differential equations?
This to me is somewhat suggests that you are going to consider one type of energy component only. If that is all you want to do the Friedmann equations can be solved analytically.Can inbuilt functions in MATLAB handle coupled ODE's? I primarily want to vary the 'w' parameter to see how the scale factor changes as the universe evolves.