# Conjugation of matrices - How to typeset it?

Can you help me?

I do not know what to type in order to show the conjugation.

I mean that the matrix B has complex entries and C is the transpose matrix of B, then B* is C with a line above.

How do I do that?

If you are referring to the Conjugate transpose, then the following is what you're after - a standard \overline:

\documentclass{article}
\let\conjugatet\overline
\begin{document}
$(\mathbf{A}^*)_{ij} = \conjugatet{\mathbf{A}_{ji}}$
\end{document}


Following the guideline in Consistent typography, I've defined \conjugatet to be equivalent to \overline.

• Should be ${}_{ji}$ in one of the two sides of the equation. – Benjamin McKay Nov 29 '14 at 7:58