Equations (TeX, LaTex editor) PE app for iPhone and iPad

Best Tex/LaTeX editor for mathematics physic and other scientist
Equations (TeX Equation editor) typesets math equations/formulas with built-in TeX engine. It is a great companion to applications like Pages/Keynote.

- Customized keyboard includes frequently used keys
- Support LaTeX / AMS LaTeX macros
- Real time equation preview
- Copy equation image
- Export equation image to mail
- Search in equation list
- Customize equation image size in options
- User can define their own macros and code snippets for reuse

Recommendations:
- Acquaintance with TeX
- iPhone 4S, iPhone 5