# How can I write the reduced planck's constant in Socratic's math notation?

## Planck's constant, $h$, is a commonly used physical constant. However equally common (really, more common in any QM applications), is the reduced planck's constant $\frac{h}{2 \pi}$. It is denoted by: Though a horizontal bar through the "h" would work fine as well. I did try "hbar" but unfortunately it produces the output hbar

Aug 1, 2016

ħ

#### Explanation:

Here's an approach to use to add that symbol. Go to any web page that lists the symbol and simply go CTRL + C, then head back to the editor and hit CTRL + V.

Add some hashtags to get it to format and you're done!

For example, I found the symbol here

https://en.wikipedia.org/wiki/Planck_constant

Here's how the symbol would look in the editor

• without hashtags

ħ

• with hashtags

ħ

You can thus use it as you would any other math symbol.

• without hashtags

ħ = h/(2pi)

• with hashtags

ħ = h/(2pi)

You can also get the symbol in MS Word by using its UNICODE tag

U+0127

and go for the same copy / paste + hashtags routine.