## Three Styles for LaTeX Vector Notation LaTeX is a very flexible program for typesetting math, but sometimes figuring out how to get the effect you want can be tricky. Most of the stock math commands are written for typesetting math or computer science papers for academic journals, so you might need to dig deeper into LaTeX commands to get the vector notation styles that are common in physics textbooks and articles.

This post shows how to typeset a LaTeX vector with an arrow, a hat, or bold. Read the rest…

## Easy Scientific Notation In LaTeX

I use LaTeX for all my physics homework and lab reports, and I’ll be using it for a master’s thesis in the next few years, so I’m constantly adding to my library of LaTeX commands to save some typing. Here’s a good one when you need to use scientific or engineering notation. Put the following in the document preamble (before \begin{document}):

\providecommand{\e}{\ensuremath{\times 10^{#1}}}

Then, typing

The  crystal planes are 3.2\e{-10} m apart.

gives you: The  crystal planes are 3.2×10-10 m apart. whether or not you’re already in a math environment. If the exponent is just one number, you can omit the braces, like this: 3\e8 m/s. Cool, huh?

(Of course, for 10-10 m you can just use Angstroms, \AA. If you’re in a math environment, use \text{\AA}, or else the circle won’t line up with the A. That is, if you’re okay with non-SI units.)