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How to input the gradient operator

Posted Jun 25, 2014, 4:36 a.m. EDT 0 Replies

Zerong Yuan
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Hi everyone
I want to input the formula ▽| E（r）|^2 , the ▽ represent the gradient operator.

I don't know how to input it in comsol.

Is the espression " d(emw.Ex^2,x)+d(emw.Ey^2,y)+d(emw.Ez^2,z)" is correct?

Thanks!
0 Replies Last Post Jun 25, 2014, 4:36 a.m. EDT
COMSOL Moderator

Hello Zerong Yuan

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