Probably the greatest and most original of all the Muslim physicians, and one of the most prolific as an author
kindly visit the refernce link
http://en.wikipedia.org/wiki/Al_Razi
Abū Bakr Muhammad ibn Zakarīya al-Rāzi (Persian: زكريای رازی Zakaria ye Razi; ابو بکر محمد بن زكريا الرازی; Latin: Rhazes or Rasis), the Persian alchemist,...
ü Al'Khwarizmi was an Islamic Mathematician who wrote on Hindu-Arabic numerals and was among the first to use zero as a place holder in positional base notation.