I just happened across this paper which caught my attention.(adsbygoogle = window.adsbygoogle || []).push({});

http://hdl.handle.net/2027.42/7869

Perhaps this has been discussed here before, but it's new to me and I have learned from several of these books.

What is the correct use or intepration of [itex]\nabla[/itex] and it's use in the 'div' and 'curl'?

What textbooks do contain the correct use?

Apparently "Mathematics of Classical and Quantum Physics", by Byron and Fuller, does give an appropriate treament, since if refers togradient,divandcurlas differential operators, and [itex]\nabla[/itex] is referred to as an operator e_{i}[itex]\partial_i[/itex].

Byron and Fuller explicitly mention that [nabla] is an operator and should not be thought of a vector.

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# Improper use of [nabla operator] in vector analysis

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