In mathematics (particularly in differential calculus), a differential operator is an operator that takes a function as input, and returns a function as a result. Differential operators will differentiate the function in one or more variables. Probably the best known differential operator is differentiation itself, which is commonly written using (in Leibniz's notation) and (in Euler's notation).
- "List of Calculus and Analysis Symbols". Math Vault. 2020-05-11. Retrieved 2020-09-15.