In mathematical writing I often use `\ell`

when I need an 'ell' variable, because `l`

looks like a `1`

. In fact, I expect this is why the symbol exists :).

Now, it often happens that my `\ell`

stands for (l)eft, and I would like to have a symbol for an 'r' variable that stands for (r)ight.

Is there a simple way to make a cursive looking r?

## Best Answer

The "Mathematical Script Small R" is just a Unicode character, so if you can enter it in your editor, and you have a font that includes a suitable representation, then it's as simple as this:

I'm using MacVim and xelatex with TexLive 2013 here and I get this

On the Mac you can get the symbol from the character viewer. This is the information it gives about it.

And if entering the character from the viewer is too laborious you can always define a little macro for it:

(This feels vaguely like something for http://www.talklikeapirate.com/)