EVERYDAY SCIENCE

Detailed explanation-1: -It was al-Khowarizmi who first synthesized Indian arithmetic and showed how the zero could function in algebraic equations, and by the ninth century the zero had entered the Arabic numeral system in a form resembling the oval shape we use today.

Detailed explanation-2: -The number zero as we know it arrived in the West circa 1200, most famously delivered by Italian mathematician Fibonacci (aka Leonardo of Pisa), who brought it, along with the rest of the Arabic numerals, back from his travels to north Africa.

Detailed explanation-3: -What is al-Khwārizmī famous for? Al-Khwārizmī is famous for his mathematical works, which introduced Hindu-Arabic numerals and algebra to European mathematicians. In fact, the words algorithm and algebra come from his name and the title of one of his works, respectively.

Detailed explanation-4: -The Hindu–Arabic or Indo–Arabic numerals were invented by mathematicians in India. Persian and Arabic mathematicians called them “Hindu numerals". Later they came to be called “Arabic numerals” in Europe because they were introduced to the West by Arab merchants.