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I am currently using $$\phi(\varepsilon) \overrightarrow{ \varepsilon \rightarrow 0 }0 $$ for writing down mathematical limits. But I am not very confident with this notation, as the text under the arrow is far too huge displayed. Does anybody here have a better suggestion

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For limits, it is advised to use \to ... in math mode of course. A little hint: Do not use $$...$$ but \[...\] instead. –  Christian Hupfer Apr 6 at 15:40
    
ah, thank you. and how do you write some text under this arrow? –  Xin Wang Apr 6 at 15:42
    
\xrightarrow[under]{over} –  Manuel Apr 6 at 15:46
    
yes, this is it. thank you! –  Xin Wang Apr 6 at 15:47
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@user180097 However I would define something like \tendsto{x\to\infty} (more “logical”) to be something like \xrightarrow[x\to\infty]{}. –  Manuel Jun 22 at 14:32

1 Answer 1

up vote 5 down vote accepted

I have two versions, depending on what you perhaps need.

\documentclass{scrbook}

\usepackage{amsmath}


\begin{document}
\[ \phi(\varepsilon) \xrightarrow[\varepsilon \to 0]{} 0 \]

\[ \lim_{\varepsilon \to 0} \phi(\varepsilon) = 0 \]
\end{document}

I prefer the \lim style, it is mathematical cleaner, but that is also a matter of taste.

enter image description here

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1  
    
@Manuel: I used an old template, but I know about the caveats of minimal ;-) –  Christian Hupfer Apr 6 at 15:51

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