# Zim - A Desktop Wiki

# Equation Editor

The equation editor is a simple dialog that allows you to insert equations into a page using **latex**.

In order to be able to use this plugin you must have latex installed and the following two commands must be available on your system: "`latex"` and "`dvipng"`. You can control the look of the equations using the special template "`_Equation.tex"`. The only variable that can be used in this template is "`equation`", which will be replaced with the content from the dialog.

**Dependencies:** This plugin requires a Latex suite to be installed as well as the "dvipng" application. In specific the "latex" and "dvipng" commands should be available in the system path.

## Syntax

Some quick examples of the latex math syntax. For a complete reference see the links below:

c = \sqrt{ a^2 + b^2 } \int_{-\infty}^{\infty} \frac{1}{x} \, dx f(x) = \sum_{n = 0}^{\infty} \alpha_n x^n x_{1,2}=\frac{-b\pm\sqrt{\color{Red}b^2-4ac}}{2a} \hat a \bar b \vec c x' \dot{x} \ddot{x}

## References

- Micheal Downes,
*Short Math Guide for LaTeX*, American Mathematical Society, 2002 [1] - Tobias Oetiker e.a,
*The Not So Short Introduction to LATEX2e*, 2007 [2]

- [1] http://www.ams.org/tex/amslatex.html
- [2] http://www.latex-project.org/guides/
- http://en.wikipedia.org/wiki/Help:Formula (latex parts only)