Write Math Symbols Latex in Inkscape
In Inkscape (from version 0.48) you can include mathematical symbols using Latex. In the menu bar go to
and write your formula. Note that the formula will appear below your drawing area. So it might be necessary to zoom out to see the formula.
If you don't see the menu entry it might be necessary to install latex, dvips, pstoedit. In Ubuntu you can open a terminal (Ctrl + T) and insert following line (followed by the enter key. You are asked for your root password.)
sudo apt-get install texlive pstoedit