Math - Ximera

$\newcommand{\arraycolsep}[3]{} \newcommand{\dd}[2][]{\frac{d #1}{d #2}} \newcommand{\pp}[2][]{\frac{\partial #1}{\partial #2}} \newcommand{\veci}{\vec{\hat{\bf\imath}}} \newcommand{\vecj}{\vec{\hat{\bf\jmath}}} \newcommand{\utan}{\vec{\hat{t}}} \newcommand{\unormal}{\vec{\hat{n}}} \newenvironment{amatrix}[1]{% \begin{bmatrix} }{% \end{bmatrix} }$

$\newenvironment {prompt}{}{} \newcommand {\ungraded }[0]{} \newcommand {\npnoround }[0]{\nprounddigits {-1}} \newcommand {\npnoroundexp }[0]{\nproundexpdigits {-1}} \newcommand {\npunitcommand }[1]{\ensuremath {\mathrm {#1}}} \newcommand {\dfn }[0]{\textbf } \newcommand {\lipsumexp }[0]{} \newcommand {\ximera }[0]{XiMeRa} \newcommand {\d }[0]{\,d} \newcommand {\HyperFirstAtBeginDocument }[0]{\AtBeginDocument }$

Description of math.

At this point, we use MathJax to display math.

$\int f(x) \d x$

Also, arrays look better than tables.