Writing (differential) operators
45071
Having the derivative be an operator
48795
How to express a 2nd order ODE as 1st order ODE's?
101512
Is there an numeric arithmetic with a single operator?
71059
How to perform arithmetic on values and operators expressed as strings?
119684
Is a contraction idempotent operator self-adjoint?
8187
How to create my own math operator with limits?
85447
Matlab Operators
24177
Is there a comprehensive list of functions with operator forms?
38839
Exponential of the differential operator
91705
Coaxing DSolve to produce an implicit solution
77388
Differentiation operator and eigenvalues
122341
Exponential of a Differential Operator
82659
How to write $\delta (f(x))$ in terms of $\delta (x)$?
115712
Application of Derivatives rigorous proof
152195
Could this be proper notation for an antiderivative? Does this notation even exist?
134035
Can differential forms be generalized to (separable) Banach spaces?
153794
What is the meaning of $1/(D+a)$, where $D$ is the derivative operator?