# Thread: Derivative of abs(x) at x=0

1. ## Derivative of abs(x) at x=0

Can somebody explain why does the derivative of abs(x) at x=0 not exist?

Thanks

2. ## Re: Derivative of abs(x) at x=0

Hey mcleja.

Hint: Look at the derivative from the right hand side and the left hand sides and show that they aren't equal.

3. ## Re: Derivative of abs(x) at x=0

Ahhhh ok, thanks chiro.