Derivative defined at some point but not continuous there?
24449
How discontinuous can a derivative be?
152111
Difference between differentiation and derivatives
96589
Word Question Involving the Definition of the Derivative
87819
What is the difference between continuous derivative and derivative?
113888
Behavior of derivative near the zero of a function.
156536
Defining functions as derivatives
101037
The given limit is a derivative, but of what function and at what point?
43874
Differentiability implies continuity - A question about the proof
134122
When is differentiating an equation valid?
133265
Definition of continuity at a point
136011
Must $f$ be continuous?
143874
Limit of derivative is zero. Does it imply a limit for f(x)?
118012
Meaning of different Orders of Derivative
50725
Inverse of function is continuous or not?
93967
Prove partial derivatives exist, but not all directional derivatives exists.
154572
Continuity of a function at an isolated point
76908
If $f'$ is differentiable at $a$ then $f'$ is continuous at $(a-\delta,a+\delta)$