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How to look up a symbol?

How do I write the symbol h cross in LaTeX. $h cross = \frac{h}{2\pi}$ where $h$ is the plancks constant. I want the h with a line across the vertical bit. I searched the internet but couldn't get it.

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Ohh. Got it. It is just $\hbar$.

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    I prefer $\hslash$, from the amssymb package.
    – Jellby
    Commented Jul 5, 2012 at 12:26

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