The **STIX project** (* Scientific and Technical Information eXchange*) was born several years ago as a collaboration between

*American Mathematical Society (AMS), American Institute of Physics (AIP), American Physical Society (APS), American Chemical Society (ACS), Institute of Electrical and Electronic Engineers (IEEE)*and

*Elsevier*to satisfy the needs of all people trying to write documents on the areas of science, medicine, engineering, etc. The design was inspired on the classical Times Roman and the aim was to create a set of free fonts under a

**SIL Open Font License**. The project went far beyond the original plans and now offers a high quality product that can be easily used on other fields.

For version 2 (from the end of 2016), the project completely reviewed the design and reorganized everything as a set of OpenType fonts with several interesting variants, changing its name to

## STIX Two

In addition to the four “traditional” faces (normal, italic, bold and bold italic), the package offers a font that can be used with unicode-math to create mathematical formulae on XƎTEX or LuaTEX systems: **STIX Two Math**

This mathematical font offers several “alternatives” through stylistic sets. For example, to use the alternative glyphs of *g, u, v, w, z* we can call this font on the preamble of our XƎTEX documents with

\setmathfont{STIX Two Math}[RawFeature={+ss02}]

If we also want integral signs that are more “vertical” we can use

\setmathfont{STIX Two Math}[RawFeature={+ss02;+ss08}]

The documentation that comes with the font (the end of the file “STIX_2.0.0_release_notes.txt” and the file “STIX_2.0.0_stylistic_sets.pdf”) provides a list with all the OpenType characteristics available on both, normal and the mathematical fonts.

It’s possible to download the fonts from **the project’s SourceForge page**.