# Equation Maker Help

### Basic LaTeX

Equation Maker supports a subset of LaTeX commands, including the most commonly used commands.

#### Common Commands

 Whitespace \space Normal text \text { content } Bold text \textbf { content } Italic text \textit { content } Underline \underline { content } Superscripts base^{ super } Subscripts base_{ sub } Square Root \sqrt[ root ]{ expression } Fractions \frac{ numerator }{ denominator } Summation \sum_{ start }^{ end } Product \prod_{ start }^{ end } Integration \int_{ start }^{ end } Limits \lim_{ x \to number }

#### Math sizing and formatting

To change the math text size, use the following commands:
• \tiny
• \scriptsize
• \small
• \normalsize
• \large
• \Large
• \LARGE
• \huge
• \Huge
Group the math to be sized inside braces, for example {\tiny i=0} will produce a tiny sized i=0. To format math as bold use \bf: {\bf \vec{B}}. Similary, use \it for italic.

#### Matrices

Matrices start with the command \begin{matrix} and end with the command \end{matrix}. Columns are delimited with the & symbol, rows are delimited with two backslashes: \\.

Example of a 2x2 matrix:
\begin{matrix}
1 & 2 \\
8 & 1
\end{matrix}

This renders as

#### Align

To show multiple lines of equations use the command \begin{align} and end with the command \end{align}. Like matrices, rows are delimited with two backslashes: \\.

Example of an equation with two lines:

\begin{align}
y = (x-1)(x+1) \\
=x^2-1
\end{align}

This renders as

#### Parentheses, Brackets, and Brace

To place parenthesis, brackets, or braces around an expression use the \left and \right commands, each followed by the appropriate symbol. For example, to place brackets around a matrix:

\left[
\begin{matrix}
1 & 2 \\
8 & 1
\end{matrix}
\right]

To show a brace, you must escape it by placing a backslash immediately before it: \{ and \}. There are also shortcut commands to place parentheses/braces around a matrix: use \begin{pmatrix} ... \end{pmatrix} to place a parenthesis around a matrix, and use \begin{bmatrix} ... \end{bmatrix} to place a brace around a matrix.

#### Greek letters

Greek letters are show by a backslash plus the name of the Greek letter. For example, Greek pi is shown with \pi. Uppercase Greek letters are shown with capitalized names.