Hello Linux Geeksters. As you may know, LyX is an open-source and multi-platform WYSIWYM/WYSIWYG document processor, using TeX / LaTeX behind some graphical user interface. It is ideal for writting academic articles, theses or books and has support for mathematical formulas.
The latest version available is LyX 2.1.2, which has been released a while ago, coming with a bunch of fixes only.
In this article I will show you how to install LyX 2.1.2 on Ubuntu 14.04 Trusty Tahr, Ubuntu 12.04 Precise Pangolin, Linux Mint 17 Qiana, Linux Mint 13 Maya, Pinguy OS 14.04, Pinguy OS 12.04, Elementary OS 0.3 Freya, Elementary OS 0.2 Luna, LXLE 14.04, Deepin 2014, Linux Lite 2.0, Peppermint Five and other Ubuntu derivative systems.
Because it is available via PPA, installing LyX 2.1.2 on Ubuntu 14.04, Ubuntu 12.04 and derivative systems is easy. All you have to do is add the ppa to your system, update the local repository index and install the lyx package. Like this:
$ sudo add-apt-repository ppa:lyx-devel/release
$ sudo apt-get update
$ sudo apt-get install lyx
Optional, to remove lyx, do:
$ sudo apt-get remove lyx