Does the antiderivative exist?
71638
Integrating a step function using antiderivatives
19828
Show that $\frac{x^3}{x^2+y^2}$ is not differentiable at $(0,0)$, even though all directional derivatives exist
116630
Antiderivative $1/z$ on $\mathbb C$
144323
Differentiation of a function
40070
Is there a real-valued function $f$ such that $f(f(x)) = -x$?
92953
Someone needs to set the record straight on what exactly antiderivatives vary by: constants functions or piecewise constant functions.
13612
Show the existence of a complex differentiable function defined outside $|z|=4$ with derivative $\frac{z}{(z-1)(z-2)(z-3)}$
145136
When can we interchange the derivative with an expectation?
87743
Is a function whose derivative vanishes at rationals constant?
16034
Function whose inverse is also its derivative?
103485
Antiderivative of periodic function
97244
Does the opposite of the brachistochrone exist?
106768
Recognizing that a function has no elementary antiderivative
85085
Simplifying the derivative of $|x|$
134122
When is differentiating an equation valid?
23510
different possible definitions of the exterior derivative?
17310
Can $f(x)=|x|^3$ be differentiated