(Sorry, the title should read "...why curl of gradient of a scalar "function" is zero)(adsbygoogle = window.adsbygoogle || []).push({});

Of course I know how to compute curl, graident, divergence. Algebrically I know curl of gradient of a scalar function is zero.

But I want to know the reason behind this...and also the reason why gradient of divergence of a vector function is always zero.

This really makes me feeling bad for a long time. Thanks in advance.

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# Calculus: I can't understand why curl of gradient of a scalar is zero

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