Definition:Differential Operator/Also defined as

Differential Operator: Also defined as

Some sources, particularly those dealing with specific physical phenomena such as electromagnetism and quantum mechanics, use the term differential operators to mean:

the divergence operator $\operatorname {div}$

the gradient operator $\grad$

the curl operator $\curl$.

Sources

• 1990: I.S. Grant and W.R. Phillips: Electromagnetism (2nd ed.) ... (previous) ... (next): Appendix $\text B$: Fields and differential operators