There are three common and useful ways to visualize a sequence of real numbers, [math]\left\{a_n\right\}[/math].[br][list=1][*]As points in the plane [math]\left(n,a_n\right)[/math].[/*][*]As rectangles with width 1 and height [math]a_n[/math]. (This way is particularly useful if you want to add together all the terms of a sequence.)[/*][*]As numbers on the [math]x[/math]-axis.[/*][/list]With this interactive figure you can create a sequence of real numbers and visualize the sequence in these three ways.

[i]Developed for use with Thomas' Calculus, published by Pearson.[/i]