<title>mtx file format</title>
<H3>Description</H3>
Files with the mtx file extension contain a matrix.
-The file format is identical to the <a href="trj.html">trj</a> format.
+The file format is identical to the <a href="trr.html">trr</a> format.
Currently this file format is only used for hessian matrices,
which are produced with <a href="../programs/gmx-mdrun.html">gmx mdrun</a> and read by
<a href="../programs/gmx-nmeig.html">gmx nmeig</a>.