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For the following example I'm getting Missing $ inserted... with regard to the \rho command:

a tangible benefit from acquiring positive reputation that is not captured within 
\citet{d05a}, in particular, it implies that in this setting \rho rises over time.

I tried $rho$, as it seemed to be suggesting, but that just put the word rho in italics.

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  • 2
    greek letters are "math"-objects. Hence you need to do $\rho$ (remember the backslash). :)
    – nickpapior
    Commented Mar 4, 2013 at 15:51
  • 2
    \(\rho\) is the right thing: it's a math symbol and requires math mode. LaTeX experts will probably use $\rho$.
    – egreg
    Commented Mar 4, 2013 at 15:51
  • Absolutely amazing. I only started using LaTeX for the first time yesterday - talk about a steep learning curve! Thanks to both of you though, this has worked a treat!
    – dannyd
    Commented Mar 4, 2013 at 15:53
  • @egreg, I believe $...$ is (mildly) deprecated. At least I prefer \(...\) as it has clear open/close.
    – vonbrand
    Commented Mar 4, 2013 at 16:48
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    Related: tex.stackexchange.com/questions/69901/… Commented Mar 4, 2013 at 19:33

1 Answer 1

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If you can use unicode-enabled engines such as XeTeX or LuaTeX, you can simply add the greek letter ρ into the document.

If you stick to tex of pdftex as engines, you can find a way by the inputenc package, for example here you can find some help.

In all cases, \(\rho\) or $\rho$ will give you a ρ in italics. If you need in upright shape, you can use the upgreek package for that.

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  • Just as a bit more information: remember to use $\uprho$ rather than $\rho$ after declaring the upgreek package (or the \(\) syntax as you desire).
    – Andy K.
    Commented Mar 5, 2013 at 15:24

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