Math Help - Riemann integrable functions

1. Riemann integrable functions

How do you do the capital script R for Riemann integrable functions? It looks like the same "font" as $\ell$ but it is a capital R.

2. This perhaps?
$\mathfrak{R}$

3. $\mathcal{R}$ ?

Can you draw it or describe it more precisely ? I've never heard of such an R
And maybe it would be quicker to write "Riemann integrable"

4. Originally Posted by Mathstud28
How do you do the capital script R for Riemann integrable functions? It looks like the same "font" as $\ell$ but it is a capital R.
It is the script font \mathscr{R} (but we don't seem to have it implemented)

$\mathscr{R}$

CB

5. Originally Posted by Chop Suey
This perhaps?
$\mathfrak{R}$
No =(
Originally Posted by Moo
$\mathcal{R}$ ?

Can you draw it or describe it more precisely ? I've never heard of such an R
And maybe it would be quicker to write "Riemann integrable"
I got it from Rudin...and I wanted it because it was pretty ...and as CB pointed out it is the \mathscr font...you can see some examples of it here http://www.ctan.org/tex-archive/info...symbols-a4.pdf on page 65
Originally Posted by CaptainBlack
It is the script font \mathscr{R} (but we don't seem to have it implemented)

$\mathscr{R}$

CB
Thanks CB...its a shame we dont have it =(