Question about using LaTex and Lyx for math typesetting.?

Can someone tell me if I must install Latex and Lyx or is one enough, in order to use math typesetting on a text editor?Question about using LaTex and Lyx for math typesetting.?
Lyx is just a graphical text editor, but it uses LaTex. If you do not have some version of LaTex installation, the standard Windows installer for Lyx will download and install a version of LaTex called MikText. (Note: A minimal MikTex installation is much larger than the entire Lyx installation!)





WinEdit is just a text editor, which works well with LaTex, but you have to have a version of LaTex installed separately.





I followed Claus Dethlefsen's detailed directions (reference below) and I'm quite happy. Click on a *.tex file and emacs opens to edit the text.





His setup puts a ';command'; menu on emacs with the item ';latex'; to conver the text file to a graphics (DVI) file. To see the results (the DVI file), select ';View'; on that ';command'; menu.





This setup also has a ';LatexPDF'; command to make PDF files for other people to view. For myself, the DVI viewers outperform PDF viewers by at least a factor of 10. (I often use lower power machines. My laptop is over 20 years old.) However, not everyone has DVI viewers installed.Question about using LaTex and Lyx for math typesetting.?
for the text editor, you should need Lyx


LaTex is usually an engine, and an appropriate editor like WinEdit or Lyx would be needed to run over it and let you typeset