What is the meaning of higher order derivatives like d²y/dx²
125738
Names of higher-order derivatives
100283
How to understand the notion of a differential of a function
101394
Please explain the logic behind $d(xy) = y(dx) + x(dy)$
23975
What is the practical difference between a differential and a derivative?
73073
Differentiating $y=x^{2}$
60897
Non-integer order derivative
4989
Why are there only derivatives to the first order in the Lagrangian?
31979
Notation: Why write the differential first?
25569
Intuitive understanding of the derivatives of $\sin x$ and $\cos x$
45071
Having the derivative be an operator
30723
Second derivative "formula derivation"
48795
How to express a 2nd order ODE as 1st order ODE's?
85730
Nth Derivative of a function
51253
Graphical intuition behind directional derivative interpreted as a(∂f/∂x)+b(∂f/∂y), where  is directional vector of unit length?
36990
Notation of the second derivative - Where does the d go?
43385
Why is $\frac{\operatorname dy'}{\operatorname dy}$ zero, since $y'$ depends on $y$?
112898
Derivative of sin(x)/x at $0$ by definition of derivative