Why does the partial derivative with respect to $x$ of a function depending only on $\dot{x}$ vanish?
7149
Calculus of variations -- how does it make sense to vary the position and the velocity independently?
28315
Monotone functions and non-vanishing of derivative
5625
Entire function with vanishing derivatives?
9924
Derivative of conjugate multivariate function
87743
Is a function whose derivative vanishes at rationals constant?
149365
When is partial differentiation commutitive
146888
Derivative of function with 2 variables
117613
Interchange of partial derivative and limit
56429
Extension of partial derivatives and the definition of $C^k(\overline{\Omega})$
90325
Why use the derivative and not the symmetric derivative?
84984
What does $\partial_{\mu}$ mean?
153794
What is the meaning of $1/(D+a)$, where $D$ is the derivative operator?
89004
Where does the partial derivative come from in Sakurai's derivation of the momentum operator?
91359
Are these mixed partial derivatives equal?
37303
Differential of a smooth function
65659
Partial derivative paradox
128026
Weak derivatives equals zero