[itex]\nabla[/itex][itex]\times[/itex]grad(f) is always the zero vector. Can anyone in terms of physical concepts make it intuitive for me, why that is so. I get that the curl is a measure of the tendency of a vector field to rotate or something like that, but couldn't really assemble an understanding just from that.(adsbygoogle = window.adsbygoogle || []).push({});

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# Curl is a measure of the tendency of a vector field

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