Al-Khwarizmi



· **Al-Khwarizmi ** //was born in// **// Baghdad //**// around 780, and died there around 850. //   · // Little of his life is known, but he was born in the **economic center** of the Islamic empire, which at this time spread from the // // Mediterranean // // to // // India ////. // //  · Founded by the rulers of the Abbasid dynasty was the  // **House of Wisdom ** // - a school in which Al-Khwarizmi and his colleague, Banu Musa, were **scholars** who worked in the translation of Greek scientific manuscripts, algebra, geometry, and __astronomy __. // //  · Al-Khwarizmi made many important  // **contributions**  //to mathematics today, including laying down the fundamentals of Algebra; which was named after one of his// famous //works,// __// Hisab // // al-jabr //__ // __w’al-muqabala__. //   · This great //mathematician// was one of the first in the Islamic world to fathom zero as a **placeholder**, and acknowledge it for increasing a number by ten fold. // · //Al-Khwarizmi also concluded that any number __**multiplied **__by zero would become zero. // · //He also used the method of moving **negative **quantities to the other side of an equation to make them **positive **. // · //After Al-Khwarizmi, other Arabic and European //mathematicians// were able to build upon his concrete ideas of Algebra and his number theory. His theories were built upon, and transformed into the **//mathematics //** we recognize today. · Now known as the **//Father of Algebra// **