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Math Help - Gradient, divergence and curl - nabla crossed with |r|r

  1. #1
    Senior Member chella182's Avatar
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    Gradient, divergence and curl - nabla crossed with |r|r

    Again, sorry for the naff title.

    Find \nabla\times(r\mathbf{r}), where r=|\mathbf{r}| and \mathbf{r}=(x,y,z).

    I ended up with an answer of (0,0,0), which, again, I doubt is right.
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  2. #2
    Senior Member
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    You're right. A radial field has no curl.
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  3. #3
    Senior Member chella182's Avatar
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    Cheers. Yeah, like I said in my other thread, turns out I was doing all of this shizz right when I thought I was doing it wrong
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