# How to type a circumflex over a greek letter in text mode?

I am trying to type a circumflex over a Greek letter in \chapter. In particular, I'm using this package:

\usepackage{textgreek}


However, if I write \^{\textPi} I get this result:

while I want the circumfex to be over the letter. Can anyone help me to solve this issue?

• welcome to tex.sx. try removing the braces around \textPi. i think it shouldn't make any difference, but i can't test it. – barbara beeton Jan 8 '18 at 23:31
• Thank for the answer, but I still get the same output. – Leo B. Jan 8 '18 at 23:39

The \^{\textPi} construction cannot, unfortunately, work. Here's a workaround:

\documentclass{book}
\usepackage{textgreek}

\DeclareRobustCommand{\greekhat}[1]{%
\leavevmode
\vbox{\offinterlineskip
\ialign{%
\hfil##\hfil\cr
\^{}\cr
\noalign{\kern-1ex}
#1\cr
}%
}%
}

\begin{document}

\chapter{A title with \greekhat{\textPi}}

And a \greekhat{\textPi} in text.

\end{document}


Are you sure you don't want this in math mode, which would be $\hat{\Pi}$?

In my opinion, math shouldn't be emboldened if in titles, but you can do it.

\documentclass{book}
\usepackage{amsmath,bm}

\begin{document}

\chapter{A title with $\bm{\hat{\Pi}}$ or $\hat{\Pi}$}

And a $\hat{\Pi}$ in math as well.

\end{document}


• Thank you, now it works. I have already used $\hat{\Pi}$ in math mode but I needed something to write the same in \chapter. – Leo B. Jan 9 '18 at 7:53
• @LeoB. I'm not sure why it should be different. I added something. – egreg Jan 9 '18 at 8:21