LibreOffice - a powerful office suite that is fully compatible with 32/64-bit. Translated into over 30 languages. Supports most popular operating systems, including GNU / Linux, Microsoft Windows and Mac OS X. Programs LibreOffice - a free collection of programs, similar in functionality to the Service Microsoft Office: Writer - a word processor; Calc - a spreadsheet; Impress - the creation and viewing of multimedia presentations; Draw - a vector graphics editor; Math - editor for mathematical formulas. One of very positive qualities - the ability to work all these applications with the relevant documents formats MS Office.

At Oxford University, a professor and a grad student work together to try and stop a potential series of murders seemingly linked by mathematical symbols.