Please solve the following by hand Show work The vander Pol

Please solve the following by hand. Show work.

The vander Pol equation is a model of an electronic circuit that arose back in the days of vacuum tubes. D^2y/dt^2-(1-y^2)dy/dt+y=0 Given the initial conditions,y(0)=y\'(0)=1, solve this equation from t=0 to 10 using Euler\'s method with a step size of (a) 0.25 and (b)0.125. Plot both solutions on the same graph.