function w=fnlab9p2(x,u);
%% y''=-(x+1)y'+2y+(1-x^2)e^(-x) , 0<=x<=1, y(0)=y(1)=0
w=[u(2),-(x+1).*u(2)+2*u(1)+(1-x.^2).*exp(-x),u(4),-(x+1).*u(4)+2*u(3)];
