# Typesetting of per-degree

What is the best (most accepted) way to typeset something like $5$ per (angular, not temperature) degree (in $\LaTeX$)?
I came up with the following options (using ^\circ for the $^\circ$ symbol):

• $5 \frac{1}{^\circ}$
• $5/^\circ$ (eventually with a $1$ before the '$/$'.)
• $5{}^{\circ ^{-1}}$ (my favorite so far)
• $5{}^\circ{}^{-1}$
• $5^{/\circ}$ (Thanks to Michael Hardy)

and the code to produce that output:

• 5 \frac{1}{^\circ}
• 5/^\circ
• 5{}^{\circ ^{-1}}
• 5{}^\circ{}^{-1}
• 5^{/\circ} (no ^ before \circ)

Note that I'm not asking this on the Latex forum, because the problem is that I don't know what it should look like. After that, formatting shouldn't be a problem.
PS: What is an appropriate tag for this question?

• Why not “5 per degree”? – MJD Feb 26 '14 at 23:14
• @MJD: Excessively readable. – André Nicolas Feb 26 '14 at 23:15
• @MJD, Hadn't really thought of that yet :) However, I like to put the units within the mathematical expression, not outside of it. Also, I might have a list of 'per degree' values in a table, and then that wouldn't be a solution. – Ragnar Feb 26 '14 at 23:16
• The standard SI supplemental unit for angle is the radian; you could write $286.479 \text{ rad}^{-1}$, which would be completely standard and unexceptionable, but which seems to obscure the essence of what you are trying to communicate.. – MJD Feb 26 '14 at 23:25
• @Ragnar : But $5^\circ$ is like $5^3$ as $5\cdot3$. – Michael Hardy Feb 27 '14 at 22:38

I have seen $5 \text{ deg}^{-1}$ and like that.