Index of /macros/latex2e/contrib/tablor
      Name                    Last modified       Size  Description

[DIR] Parent Directory 12-Dec-2019 15:56 - [DIR] Figures/ 18-Nov-2010 00:53 - [DIR] auto/ 08-Oct-2013 03:43 - [TXT] tablor-xetex.sty 07-Oct-2013 00:46 96k [   ] tablor.cfg 13-Sep-2010 04:43 2k [TXT] tablor.html 13-Sep-2010 04:43 158k [   ] tablor.pdf 13-Sep-2010 04:43 381k [TXT] tablor.sty 07-Oct-2013 00:46 91k [TXT] tablor.tex 13-Sep-2010 04:43 60k

The package allows the user to use the computer algebra system XCAS 
to generate tables of signs and of variations (the actual plotting of
the tables uses the MetaPost macro package "" : . 

The tablor package requires that shell escape be enabled.

For instance :

\begin{TV} TV([-10,+infinity],[-1,1],"g","t",x^2/(x^2-1),1,n,\tv) \end{TV} 

draws table of  variations  of  x->x^2/(x^2-1). 

You can download XCAS here:

The     non-french     users    need     to     comment    out     every

" \usepackage[upright]{fourier} "

Just put tablor.sty and tablor.cfg into /texmf/tex/latex/tablor/