From MKS to GAUSS system E.M. fields transformations

Forum|Forum|10 years ago
December 7, 2015
3 replies
8174 views

Goodmorning everyone!

Is there anyone who can fix this little problem?

Thanks a lot.

F. M.

Other

V

ValeryOchkov

24-Ruby IV

Yes it is not a man - it is a competer

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-MFra-

Author

21-Topaz II

What........?????

V

ValeryOchkov

24-Ruby IV

F.M. wrote:

What........?????

Sorry, what what???

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-MFra-

Author

21-Topaz II

Thinking about it, with regard to the divergence operator, since I used the dot product, which is commutative (while the vector product is not) the program (considering both arguments as vectors) swaps the operator (seen as a vector) with the vgiven ector. Swapping that is not valid for the vector product.

W

Werner_E

25-Diamond I

You are right, that you can omit/delete the placholder for the variable in the gradient operator. But it seems that you deleted the placeholder for the function, too, and so you end up as Richard already stated with a simple variable. You see the multiplication dot between the nabla-symbol and the variable D or B.

I am not sure what you expected the nabla-symbol to be. Mathcad obviously gives you the result you expected anyway as the order of the operands in a product does not matter.

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-MFra-

Author

21-Topaz II

Thanks for the examples. I know what is written in the guide, and I've taken into account.

I use these operators since I was a boy.

The symbol is called nabla and it defines the gradient operator acting on a scalar.

Similarly to what is realized in mathcad for it, I would like to define the other two vector operators with the use of nabla: divergence and rotor that act on vectors.