The derivative as a ratio
3360
Is $\frac{\textrm{d}y}{\textrm{d}x}$ not a ratio?
158407
derivative bounded by a constant multiple of the function
36990
Notation of the second derivative - Where does the d go?
56275
Vector derivative w.r.t its transpose $\frac{d(Ax)}{d(x^T)}$
4735
Proof for alternative definition of the derivative
60321
Use the definition of derivative to prove $\lim_{x\to 0}\ln(x+1)/x =1$
128795
$n$th derivative of $e^x \sin x$
124459
$n^{th}$ derivative of a tetration function
72702
Estimate on the derivative at fixed point
80471
Derivative of $(y-XB)' h(y-XB)$ with respect to $B$
158520
Derivative of Fourier transform: $F[f]'=F[-ixf(x)]$
3387
Derivative of $f(x)=|x|$
56424
Using D to find a symbolic derivative
119907
Finding the Derivative of |x| using the Limit Definition
75216
What is the derivative of this?
151109
Verification that $\lim_{x \to a}\frac{f(x)-f(a)}{x-a}$ and $\lim_{h\to 0}\frac{f(a+h) -f(a)}{h}$ are equivalent definitions of the derivative.
101037
The given limit is a derivative, but of what function and at what point?