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Since years, Arabic fonts used in Mathematics, Physics and Chemistry for elementary - preparatory school's level are used locally in Arab countries.
However, Dr. Lazrak and his team (UCAM, Morocco) presented some interesting reviews for different used systems through the Arab World and, I think, they applied it to LaTex.
Currently, with STIX fonts arriving to good maturity, I think it is time to work on this project and we, @ Aratypo, welcome any person who would like to share with us thoughts and efforts in order to realize this font.
Thanking you in advance.
About STIX: http://www.stixfonts.org/