Math & Science ⇒ Double Superscript Problem

[M.A]

Hi all
I need to write something like this

Code: Select all

    \[ {\hat A_i^j}^T \]

However, it gives me error.
While the following works normally:

Code: Select all

    \[ {A_i^j}^T \]

It seems that the problem is with the hat. How to solve this?

Thanks

[localghost]

Code: Select all

\documentclass{article}

\begin{document}
  \[
    \hat{A}_i^j\strut^T
  \]
\end{document}

Thorsten

[M.A]

Thanks alot, it works now. But with one half line spacing, the second superscript is too high. How to solve this ?

Code: Select all

 \documentclass[]{article}
 \def\baselinestretch{1.5}
 \begin{document}
    \[ {\hat A_i^j}\strut^T \]
 \end{document}

[Stefan Kottwitz]

This works:

Code: Select all

\documentclass[]{article}
\def\baselinestretch{1.5}
\begin{document}
  \newcommand*{\expression}{\hat A_i^j}
  \[ \expression{\vphantom\expression}^T \]
\end{document}

Btw. I would use the setspace package instead of redefining \baselinestretch.

Stefan

[M.A]

Thanks alot, it works!

Note: I am using a journal class file, so I copied the definition of \baselinestretch from the class file to reproduce the problem.