# What is a limit from below?

##### 1 Answer

If we have a limit from below, that is the same as a limit from the left (more negative).

We can write this like the following:

rather than the traditional

This means we are only considering what happens if we start with a number lower than our limit value and approach it from that direction.

This is generally more interesting with a Piecewise function. Imagine a function which is defined as

graph{|x|/(2x) + 1/2 + x [-3, 3, -2.5, 3.5]}

The limit as