Back to Teaching Page

---

LaTeX Software

• Overleaf - An Online LaTeX Editor
• TeX Live
• TeXstudio - A LaTeX Editor

Multi columns

\usepackage{multicol}
\begin{multicols}{2}
\begin{enumerate}
    \item a
    \item b
    \item c
    \item d
\end{enumerate}
\end{multicols}

Custom Names for Equations

\begin{equation}\label{zzz}\tag{P1}
c^2 = a^2 + b^2
\end{equation}

Split-level Fractions

\usepackage{xfrac}
$\sfrac{12}{3}$

Tcolorbox

\usepackage{tcolorbox}
\begin{tcolorbox}[
    boxrule = 0.5pt, colback = green!10!white,
    grow to left by = -1in, grow to right by = -1in,
    enlarge top by = 0.1in, enlarge bottom by = 0.1in]
    $c^2=a^2+b^2$
\end{tcolorbox}

Change space in listing globally

\usepackage{enumitem}
\setlist[enumerate]{itemsep=1pt, topsep=1pt}

Long arrows

\usepackage{extarrows}
$\xLeftarrow[\text{bottom}]{\text{top}}$
$\xleftarrow[\text{bottom}]{}$
$\xRightarrow{\text{top}}$
$\xrightarrow{\text{top}}$
$A\xlongequal{\text{by ZZZ’s Theorem}} B$ 

Align (right) in matrices

\begin{pmatrix*}[r]
     1 & -2\\
    -1 & 3
\end{pmatrix*}

Spacing in arrays

\[\arraycolsep = 10pt
\def\arraystretch{2.2}
\begin{array}{c|c}
    a & b\\
    c & d
\end{array}\]

Tikz - Stealth Arrows

\usepackage{arrows.meta}
\begin{tikzpicture}
\draw [-stealth] (0,0) -- (3,0);
\draw [stealth-] (0,-1) -- (3,-1);
\draw [-{Stealth[width=3mm,length=5mm]}] (0,-2) -- (3,-2);
\end{tikzpicture}

---