[size=150][b]Illustration #1[/b][/size][br][br]Illustrate a Riemann sum approximation for the area under [math]y=f\left(x\right)[/math] between [math]x=2[/math] and [math]x=10[/math]. Use four equal-width subintervals and RRAM.[br][br]Move the black points to adjust the rectangles. You can also zoom and/or shift the window view.

[size=150][b]Illustration #2[/b][/size][br][br]Illustrate a Riemann sum approximation for the area under [math]y=g\left(x\right)[/math] between [math]x=0[/math] and [math]x=20[/math]. Use five equal-width subintervals and LRAM.[br][br]Move the black points to adjust the rectangles. You can also zoom and/or shift the window view.