General ⇒ R with a circle

[ivana]

Hello,

how can I write the symbol that should look like \mathbb{R} with a circle above it? I don't want \mathbb{R}^\circ, it should be more like \AA.

Thanks a lot...

[Stefan Kottwitz]

Hi Ivana,

welcome to the board!
You could try

Code: Select all

\mathop{\mathbb{R}}\limits^\circ

or

Code: Select all

\overset{\circ}{\mathbb{R}}

Stefan

[ivana]

Hello,

it works, but it doesn't look good. When you use it in the text, the lines with this symbol are larger...

[Stefan Kottwitz]

Hi Ivana,

try this macro, I've just made some adjustments as you can see:

Code: Select all

\newcommand*\Rcirc{\ensuremath{\smash{\overset{\circ}
{\smash{\mathbb{R}}\rule{0pt}{1.2ex}}\vphantom{\mathbb{R}}}}}

Stefan

[ivana]

That's it!
Thank you very much...