GraphingCalculator 3.2;
Window 44 118 756 758;
PaneDivider 221;
Slider 0 20;
SliderSteps 20;
SliderControlValue 0;
2D.BottomLeft -1.984375 -4.21875;
Expr y=1/(1-x);
Color 2;
Expr y=sum(x^k,k=0,n);