equalx software package provides graphical editor for LaTeX equations, you can install in your Ubuntu 16.10 (Yakkety Yak) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install equalx
equalx is installed in your system.
Make ensure the equalx package were installed using the commands given below,
$ sudo dpkg-query -l | grep equalx *
You will get with equalx package name, version, architecture and description in a table
| Distro | Ubuntu 16 10 yakkety yak |
| Section | TeX |
| Package | equalx |
| Version | 0.7.1-4 |
| Description | graphical editor for LaTeX equations |
| Sub Section | tex |