Switching characters to smaller type in a matrix environment seems to have unexpected results: side parethesis appears converted into a column of numbers What is wrong?
Here enclosed a test lyx file Thank you -- Paolo Pumilia -- enc.----------------------------------------------------- #LyX 1.2 created this file. For more info see http://www.lyx.org/ \lyxformat 220 \textclass article \begin_preamble \usepackage[nice]{nicefrac} \end_preamble \language english \inputencoding auto \fontscheme default \graphics default \paperfontsize default \spacing single \papersize Default \paperpackage a4 \use_geometry 1 \use_amsmath 0 \use_natbib 0 \use_numerical_citations 0 \paperorientation portrait \leftmargin 1cm \topmargin 1cm \rightmargin 1cm \bottommargin 2cm \secnumdepth 3 \tocdepth 3 \paragraph_separation indent \defskip medskip \quotes_language english \quotes_times 2 \papercolumns 1 \papersides 1 \paperpagestyle default \layout Standard Normal characters: \layout Standard \lang american \begin_inset Formula \begin{equation} \nabla F=\left[\begin{array}{cccccccccccccc} 0 & 0 & -2\omega _{o} & -\omega _{o} & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0\\ 0 & 0 & \omega _{o} & 2\omega _{o} & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0\\ 2\omega _{o} & 0 & 0 & 0 & 0 & \omega _{12} & 0 & \omega _{o} & -\chi _{1}w_{1} & \chi _{2}w_{1} & 0 & 0 & 0 & 0\\ 0 & -2\omega _{o} & 0 & 0 & 0 & 0 & -\omega _{23} & \omega _{o} & 0 & \chi _{2}w_{2} & -\chi _{3}w_{2} & 0 & 0 & 0\\ 0 & 0 & 0 & 0 & 0 & -\omega _{o} & \omega _{o} & -\omega _{13} & \chi _{1}w_{3} & 0 & -\chi _{3}w_{3} & 0 & 0 & 0\\ 0 & 0 & -\omega _{12} & 0 & \omega _{o} & 0 & 0 & 0 & \chi _{1}v_{1} & -\chi _{2}v_{1} & 0 & 0 & 0 & 0\\ 0 & 0 & 0 & \omega _{23} & -\omega _{o} & 0 & 0 & 0 & 0 & -\chi _{1}v_{2} & \chi _{3}v_{2} & 0 & 0 & 0\\ 0 & 0 & -\omega _{o} & -\omega _{o} & \omega _{13} & 0 & 0 & 0 & -\chi _{1}v_{3} & 0 & \chi _{3}v_{3} & 0 & 0 & 0\\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & \nicefrac 1m_{1} & 0 & 0\\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & \nicefrac 1m_{2} & 0\\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & \nicefrac 1m_{2}\\ -\nicefrac {2\chi _{1}}{3} & -\nicefrac {\chi _{1}}{3} & 0 & 0 & 0 & 0 & 0 & 0 & -m_{1}\omega _{1}^{2} & 0 & 0 & -\gamma _{1} & 0 & 0\\ -\nicefrac {\chi _{2}}{3} & \nicefrac {\chi _{2}}{3} & 0 & 0 & 0 & 0 & 0 & 0 & 0 & -m_{2}\omega _{2}^{2} & 0 & 0 & -\gamma _{2} & 0\\ \nicefrac {\chi _{3}}{3} & \nicefrac {2\chi _{3}}{3} & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & -m_{3}\omega _{3}^{2} & 0 & 0 & -\gamma _{3}\end{array} \right]\end{equation} \end_inset \layout Standard \lang american Smaller characters: \layout Standard \size footnotesize \lang american \begin_inset Formula \begin{equation} \nabla F=\left[\begin{array}{cccccccccccccc} 0 & 0 & -2\omega _{o} & -\omega _{o} & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0\\ 0 & 0 & \omega _{o} & 2\omega _{o} & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0\\ 2\omega _{o} & 0 & 0 & 0 & 0 & \omega _{12} & 0 & \omega _{o} & -\chi _{1}w_{1} & \chi _{2}w_{1} & 0 & 0 & 0 & 0\\ 0 & -2\omega _{o} & 0 & 0 & 0 & 0 & -\omega _{23} & \omega _{o} & 0 & \chi _{2}w_{2} & -\chi _{3}w_{2} & 0 & 0 & 0\\ 0 & 0 & 0 & 0 & 0 & -\omega _{o} & \omega _{o} & -\omega _{13} & \chi _{1}w_{3} & 0 & -\chi _{3}w_{3} & 0 & 0 & 0\\ 0 & 0 & -\omega _{12} & 0 & \omega _{o} & 0 & 0 & 0 & \chi _{1}v_{1} & -\chi _{2}v_{1} & 0 & 0 & 0 & 0\\ 0 & 0 & 0 & \omega _{23} & -\omega _{o} & 0 & 0 & 0 & 0 & -\chi _{1}v_{2} & \chi _{3}v_{2} & 0 & 0 & 0\\ 0 & 0 & -\omega _{o} & -\omega _{o} & \omega _{13} & 0 & 0 & 0 & -\chi _{1}v_{3} & 0 & \chi _{3}v_{3} & 0 & 0 & 0\\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & \nicefrac 1m_{1} & 0 & 0\\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & \nicefrac 1m_{2} & 0\\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & \nicefrac 1m_{2}\\ -\nicefrac {2\chi _{1}}{3} & -\nicefrac {\chi _{1}}{3} & 0 & 0 & 0 & 0 & 0 & 0 & -m_{1}\omega _{1}^{2} & 0 & 0 & -\gamma _{1} & 0 & 0\\ -\nicefrac {\chi _{2}}{3} & \nicefrac {\chi _{2}}{3} & 0 & 0 & 0 & 0 & 0 & 0 & 0 & -m_{2}\omega _{2}^{2} & 0 & 0 & -\gamma _{2} & 0\\ \nicefrac {\chi _{3}}{3} & \nicefrac {2\chi _{3}}{3} & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & -m_{3}\omega _{3}^{2} & 0 & 0 & -\gamma _{3}\end{array} \right]\end{equation} \end_inset \the_end -- enc.---
