>><troll>
>>Curl, divergence and similar operators are just properties of the
>>differential form defined by physicists and engineers who do not 
>>understand
>>differential forms.
>></troll>
> 
> Mathematicians can tell you how things should work,
> engineers can tell you how things really do work.
> 
>>But all this is somewhat advanced calculus. In France at least, it is only
>>taught to science students in college or similar level.
> 
> Yeah, topology feels like graduate level math.

Trolling++: This is advanced calculus and differential geometry.
Topology is much more beautiful, you get it after abstracting
those things away which could be related to actual numbers ;)

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