Del Operator

The Del Operator

If you know the gradient then the Del operator [image] is near. It is only another notation for the gradient

 

[image] [image]

 

This is called the del notation. The operator looks like a reverse Delta [image] for “difference”. Indeed the del operator deals with rates of changes.

 

 

In mathematics the del operator is also called nabla, named after a Hebrew stringed instrument (looks like a harp).

 

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Coat of arms of Ireland (Source: Tonyjeff)