deletions | additions       diff --git a/Stuff.tex b/Stuff.tex  index 2f690f2..84e5ecd 100644  --- a/Stuff.tex  +++ b/Stuff.tex 
...
\newcommand{\units}[1]{{\renewcommand{\.}{\!\cdot\!}\rm\,#1}}  \newcommand{\sci}[1]{\times 10^{#1}}  \newcommand{\sub}[1]{_{\text{#1}}}  \newcommand{\textfrac}[2]{{\textstyle\frac{#1}{#2}}}  \newcommand{\half}{\textfrac{1}{2}}  \newcommand{\infinity}{\infty}  \newcommand{\degree}{\ensuremath{{}^{\circ}}}  \newcommand{\abs}[1]{\left| #1 \right|}  David's block is cooler than Will's!  \begin{equation}  \vec p\sub{f} = \vec p\sub{i} + \vec F\sub{net} \Delta t