How to define a differential operator in Mathematica?
45071
Having the derivative be an operator
16291
Discontinuous derivative.
121547
Differential equation for Harmonic Motion
106212
Multiple derivative notation
89004
Where does the partial derivative come from in Sakurai's derivation of the momentum operator?
138784
Is the differentiation operator an open mapping?
118072
Division of differential equations
5634
Neglect higher order derivatives in expression
7474
What am I doing when I separate the variables of a differential equation?
138766
Nondimensionalizing a differential equation
60897
Non-integer order derivative
69746
Can we abuse notation and write equations in differential one-form?
153794
What is the meaning of $1/(D+a)$, where $D$ is the derivative operator?
32281
Derivative of convolution
65515
How to treat differentials and infinitesimals?
152195
Could this be proper notation for an antiderivative? Does this notation even exist?
23975
What is the practical difference between a differential and a derivative?