# Give an example which is continous everywhere but not differentiable at 3 points?

##### 1 Answer

Apr 12, 2017

#### Answer:

#### Explanation:

Here is what a graph of this function would look like:

graph{abs(x-1)*abs(x-2)*abs(x-3) [-0.13, 4.736, -0.249, 2.181]}

Although the function is defined for

it is not differentiable at