%
% noninv
%
source([-1 -.5],'V','h'); 
plot([2.6 3.6],[-.5 -.5],'k','linewidth',1.5)
resist([-1 -2.5],'h','R_1','y_1')
plot([2.6 3.6],[-2.5 -2.5],'k','linewidth',1.5)
plot([-1 -1],[-0.5 -3.5],'k','linewidth',1.5)
ground([-1 -3.5],'')
opamp([r .5],4,0)
resist([3.5 -5],'h','R_2','y_2')
plot([2.5 2.5],[-2.5 -5],'k','linewidth',1.5)
plot([2.5 4],[-5 -5],'k','linewidth',1.5)
plot([6.9 8.5],[-5 -5],'k','linewidth',1.5)
plot([8.5 8.5],[-5 -1.5],'k','linewidth',1.5)
plot([7.5 8.5],[-1.5 -1.5],'k','linewidth',1.5)
text(2.4,-2,'x_1','fontsize',20)
text(7.8,-2,'x_2','fontsize',20)
hold off
axis off