Enter any [b]UPPER FUNCTION[/b] (labeled upper(x)).[br]Enter any [b]LOWER FUNCTION[/b] (labeled lower(x)).[br]Enter your [b]lower and upper limits of integration [/b]("a" and "b", respectively).[br][br]Slide the[b] FILLING[/b] slider all the way to the left. [br]For this solid, note how cross sections parallel to the yAxis are [color=#ff7700][b]ellipses [/b][/color]with its entire minor axis lying in the base. This minor axis is parallel to the yAxis and has length = upper(x) - lower(x). [br]In addition, you can alter the eccentricity of this ellipse by using the [b]ecc[/b] slider. Here [math]0\le ecc<1[/math]. [br][br]You can move this [color=#ff7700][b]ellipse[/b] [/color]by sliding the [b]MoveMe[/b] slider. [br][br]You can modify any of these parameters (functions, limits) at any time. [br][b][br][color=#1e84cc]To explore in augmented reality, see the directions below this applet. [/color][/b]

1) Open up GeoGebra 3D app on your device. [br][br]2) Go to the MENU (horizontal bars) in the upper left corner. Select OPEN. [br] In the Search GeoGebra Resources input box, type [b]m2hgzcyr[/b][br] (Note this is the resource ID = last 8 digits of the URL for this resource.)[br][br]3) In the resource that uploads, zoom in/out if needed.[br]  You can alter the functions upper(x), lower(x). [br] You can also move sliders a, b, MoveMe, Filling, and ecc. [br] (Be sure to leave everything else alone.)