# Symbols:R/Non-Negative Real Numbers

## Real Numbers

$\R_{\ge 0}$
$\R_{\ge 0} = \set {x \in \R: x \ge 0}$

The $\LaTeX$ code for $\R_{\ge 0}$ is \R_{\ge 0}  or \mathbb R_{\ge 0} or \Bbb R_{\ge 0}.

MediaWiki $\LaTeX$ also allows \reals_{\ge 0}, but MathJax does not recognise that as a valid code.

## Variants

$\R_+$
$\R_+ = \set {x \in \R: x \ge 0}$

The $\LaTeX$ code for $\R_+$ is \R_+  or \mathbb R_+ or \Bbb R_+.

MediaWiki $\LaTeX$ also allows \reals_+, but MathJax does not recognise that as a valid code.