Function different from original by differentiating it and integrating it again.
30230
Getting different answers when integrating using different techniques
4735
Proof for alternative definition of the derivative
127338
Intuitive characterization of the graph of a twice differentiable function
140936
If two integrals are equal, then the functions are the same
149789
Using a function in two different ways
152617
Differentiate $f(x)=x^TAx$
133691
When the integral of products is the product of integrals.
107609
Function whose third derivative is itself.
51170
Evaluation of Differentiation and Integration
53024
$f(x)f(1/x)=f(x)+f(1/x)$
149122
If two functions are defined by the same formula, but have different codomains, are they equal?
59279
Example of function that is differentiable, but the second derivative is not defined
59165
Derivative of a linear transformation.
75266
$f(a+b)=f(a)+f(b)$ but $f$ is not linear
97146
differentiate with respect to a function
16291
Discontinuous derivative.
8502
Why aren't integration and differentiation inverses of each other?