Fonts & Character Sets ⇒ equals with arrow on top

[juliette]

Hello,
I need an equals sign with an arrow (something like \rightarrow or \rightharpoonup, whichever looks more elegant ) on top of it, but I couldn't find it in Scott Pakin's 2009 list, has anyone come across this symbol ?

Very much appreciated,
Thanks

[gmedina]

Hi,

\overset could help you to define the new symbol:

Code: Select all

\documentclass{book}
\usepackage{amsmath}

\begin{document}

$a\overset{\rightarrow}{=} b$

\[ a\overset{\rightarrow}{=} b\]

$a\overset{\rightharpoonup}{=} b$

\[ a\overset{\rightharpoonup}{=} b\]

\end{document}