Jose Capco wrote:
I went to document in Layout menu, then I went to
preamble and put this
\newcommand\Z{\mathbb{Z}}
And went to my document and changed to mathmode and typed \Z in it.. in LaTeX this would be understood as \mathbb{Z} and everything would go fine.. but in LyX, apparently the preamble was disregarded .. an error occured when I tried to view this in dvi saying that \Z is an undefined control sequence (which would have happened in LaTeX had I not but \newcommand in the preamble) ..
"\Z is an undefined control sequence" is an error message of LaTeX, not of LyX!
So later I learned by reading the userguide that I have to use math-macro ..
No, you mustn't. You can of course use all LaTeX commands.
\newcommand{\Z}{\mathbb{Z}} works fine for me, see the attached example LyX-file.
regards Uwe
#LyX 1.3 created this file. For more info see http://www.lyx.org/ \lyxformat 221 \textclass article \begin_preamble \newcommand{\Z}{\mathbb{Z}} \end_preamble \options fleqn \language english \inputencoding auto \fontscheme default \graphics default \paperfontsize 12 \spacing single \papersize a4paper \paperpackage a4 \use_geometry 0 \use_amsmath 1 \use_natbib 0 \use_numerical_citations 0 \paperorientation portrait \secnumdepth 4 \tocdepth 3 \paragraph_separation skip \defskip medskip \quotes_language german \quotes_times 2 \papercolumns 1 \papersides 1 \paperpagestyle empty \bullet 1 1 34 -1 \end_bullet \bullet 2 2 35 -1 \end_bullet \bullet 3 2 7 -1 \end_bullet
\layout Standard \begin_inset Formula \[ \Z\] \end_inset \the_end