# How do i write ħ in LaTeX, for the reduced Planck constant? [duplicate]

Possible Duplicate:
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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## marked as duplicate by egreg, Ian Thompson, rdhs, Paulo Cereda, yo'Jul 5 '12 at 13:32

Ohh. Got it. It is just $\hbar$.
I prefer $\hslash$, from the amssymb package. –  Jellby Jul 5 '12 at 12:26