LaTeX users online

In total there are 8 users online :: 0 registered, 0 hidden and 8 guests (based on users active over the past 5 minutes)
Most users ever online was 1327 on Tue Nov 05, 2013 7:11 pm

Users browsing this forum: No registered users and 8 guests

LaTeX representation of hollow "R" symbol for real space?

LaTeX Forum: Text Formatting

Add tags Information and discussion about LaTeX's general text formatting features (e.g. bold, italic, enumerations, ...)

Postby clayton on Wed May 19th, 2010

In LaTeX, how do I represent the hollow "R" symbol that designates the real number space?

Thanks!
clayton
 
Posts: 2
Joined: Wed May 19th, 2010

Postby gmedina on Wed May 19th, 2010

Hi,

use \mathbb from amsfonts (loaded by amssymb):

Code: Select all  •  Open in online LaTeX editor
\documentclass{report}
\usepackage{amssymb}

\begin{document}

$\mathbb{R}$

\end{document
}
1,1,2,3,5,8,13,21,34,55,89,144,233,...
User avatar
gmedina
 
Posts: 2313
Joined: Wed Jul 11th, 2007
Location: Colombia

Postby clayton on Wed May 19th, 2010

Works perfectly! Thanks!
clayton
 
Posts: 2
Joined: Wed May 19th, 2010

Postby svend_tveskaeg on Mon May 24th, 2010

Just a note:
One normally represents the sets of natural numbers, integers, rational numbers, real numbers, and complex numbers by bold letters (at least on our math institut). I only use the `hollow' letters when writing on a blackboard.)

For the real numbers that is

Code: Select all  •  Open in online LaTeX editor
\mathbf{R}

instead of

Code: Select all  •  Open in online LaTeX editor
\mathbb{R}
``In the game of chess, you can never let your adversary see your pieces.''
-- Zapp Brannigan, Futurama (season 1, episode 4)
User avatar
svend_tveskaeg
 
Posts: 478
Joined: Sun Jul 12th, 2009
Location: Aarhus, Denmark

Postby localghost on Mon May 24th, 2010

I don't think that your math institute sets the standard [1,2]. Just by the way. The use of blackboard letters for this representation is very common.

[1] Real number - Wikipedia, the free encyclopedia
[2] Reelle tal - Wikipedia, den frie encyklopædi
LaTeX Community Moderator
How to make a "Minimal Example"
Board Rules
Avoidable Mistakes


¹ System: openSUSE 13.1 (Linux 3.11.10), TeX Live 2013 (vanilla), TeXworks 0.5 (r1351)
² Posting stopped indefinitely due to offenses
User avatar
localghost
Site Moderator
 
Posts: 9218
Joined: Fri Feb 2nd, 2007
Location: Braunschweig, Germany


Return to Text Formatting

LaTeX users online

Users browsing this forum: No registered users and 8 guests