$\newcommand{\ds}{\displaystyle}$ $\newcommand{\Rr}{\mathbb{R}}$

LaTeX Cheatsheet for WebWork

Just use plain text. Do not copy and paste special symbols! In the following %%latex is just for latex display in this notebook. Do not include that in WebWork.

Here is a list of latex symbols and

Here is a place to search for latex symbols by handwritting.

%%latex

\( \frac{\sqrt{2x}}{3} \)

\( \frac{\sqrt{2x}}{3} \)

Argument in between {}, option in between [], _ for subscript, ^ for superscript

%%latex 

\( \sqrt[n]{x_1^2+3} \)

\( \sqrt[n]{x_1^2+3} \)

%%latex

\( 
\mathbb{R}, \mathbb{R} \setminus \mathbb{Q} 
\)

\( \mathbb{R}, \mathbb{R} \setminus \mathbb{Q} \)

%%latex

\( \limsup x_n \), \( \liminf x_n \)

\( \limsup x_n \), \( \liminf x_n \)

%%latex

\( \int_0^1 f(x)dx = \lim_{t \to 0^+} \int_t^1 f(x)dx \)

\( \int_0^1 f(x)dx = \lim_{t \to 0^+} \int_t^1 f(x)dx \)

%%latex

\[ \int_0^1 f(x)dx = \lim_{t \to 0^+} \int_t^1 f(x)dx\]

\[ \int_0^1 f(x)dx = \lim_{t \to 0^+} \int_t^1 f(x)dx\]

%%latex

\(\infty \)

\(\infty \)

%%latex

\(x_1, x_ 2, \ldots, x_n\), \(x_1 + x_2 + \cdots + x_n\) 

and 

\(\sum_{k=1}^n x_k\)

\(x_1, x_ 2, \ldots, x_n\), \(x_1 + x_2 + \cdots + x_n\) and \(\sum_{k=1}^n x_k\)

%%latex

\(\overline{\int_a^b} f \)

and

\(\underline{\int_a^b f}\)

\(\overline{\int_a^b} f \) and \(\underline{\int_a^b f}\)

%%latex

\(
|x| = \begin{cases}
       x & \text{if}\ x > 0 \\
       0 & \text{if}\ x=0 \\
       -x& \text{if}\ x < 0
    \end{cases}
\)

\( |x| = \begin{cases} x & \text{if}\ x > 0 \\ 0 & \text{if}\ x=0 \\ -x& \text{if}\ x < 0 \end{cases} \)