$f(X^1,...,X^n)=\det[X^1...X^n]$ is differentiable
68973
Is the determinant differentiable?
142490
Alternative proof for differentiability of inverse function?
146318
Derivative of f(x)=arth(lnx)
30836
Derivative of a determinant whose entries are functions
139534
Derivative of determinant, which is correct?
65953
Cardinality of the set of differentiable functions
8659
How do you show that $e^{-1/x^2}$ is differentiable at $0$?
49705
Is $f(x,y)=(x+2y+y^2+|xy|, 2x+y+x^2+|xy|)$ differentiable?
105068
Proving that the function is differentiable and $f'(0)=0$
98462
Prove the inverse of a strictly increasing function is differentiable.
124459
$n^{th}$ derivative of a tetration function
106013
Given $f(x) = x + |x|$ for what values of $x$ is $f$ differentiable
27738
Gradient of $a^T X b$ with respect to $X$
135941
Derivative of $|x|^\alpha$
99918
The $100$th derivative of $(x^2 + 1)/(x^3 - x)$
65889
Showing $\Phi(x)=\int_0^x (x-t)f(t)\,dt$ is twice differentiable and finding $\Phi''(x)$
6632
Sequence of differentiable functions