Discontinuity - with epsilon-delta

Multi-purpose applet

This applet can be used for the following goals: 1. To explain non-existence of a limit of a function at a certain point 2. The difference between limit-on-the-left and limit-on-the-right 3. Discontinuity of a function at a certain point Pay attention to the relations between the red and the green lines. The x-coordinate can move. Something else moves accordingly.