# How to write an equation in LaTeX?

How do I write this equation in LaTeX?

Vo = ( R1/( R1+R4)-R2/(R2+R3) ) x Vs

• Negative points seem unfair. We'd like to encourage people to use LaTeX and not run off people just because they don't know how to get started. The op doesn't know what to do. Minimally you could say something helpful. – A.Ellett Apr 9 '15 at 3:51
• It might be good for you to check out some of the suggestions at Where can I find the standard LaTeX reference manual? – A.Ellett Apr 9 '15 at 3:54
• This is usually where people ask questions when they are stuck, particularly after searching for answers on this site and elsewhere. In addition to @A.Ellett's suggestion, the Mathematics section of the LaTeX wikibook should be straightforward and helpful. – erik Apr 9 '15 at 3:57

A quickly coded option.

\documentclass[10pt,letterpaper]{article}
\usepackage{mathtools}
\begin{document}
$V_o = \left(\frac{ R_1}{( R_1+R_4)}-\frac{R_2}{(R_2+R_3)} \right)V$
\end{document}


Now I strongly recommend you go online and begin to read any one of the many fine introductions to LaTeX e.g. http://en.wikibooks.org/wiki/LaTeX

Or read this for more good choices of introductions to LaTeX How to write an equation in LaTeX?

There a a number of online equation editors that can be useful to familiarise yourself with the mathematical syntax of LaTeX.

Here are two such editors that provide live updates:

http://www.hostmath.com/

http://www.codecogs.com/latex/eqneditor.php