HISTORY
ANCIENT INDIA
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]


Developing the calendar


Adding and using the numeral 0 (zero)


Pythagorean Theorem


Determining that Pi is 3.16

Detailed explanation1: The first modern equivalent of the numeral zero comes from a Hindu astronomer and mathematician Brahmagupta in 628. His symbol to depict the numeral was a dot underneath a number. He also wrote standard rules for reaching zero through addition and subtraction and the results of operations that include the digit.
Detailed explanation2: About 773 AD the mathematician Mohammed ibnMusa alKhowarizmi was the first to work on equations that were equal to zero (now known as algebra), though he called it ‘sifr’. By the ninth century the zero was part of the Arabic numeral system in a similar shape to the present day oval we now use.
Detailed explanation3: Hindu astronomers and mathematicians Aryabhata, born in 476, and Brahmagupta, born in 598, are both popularly believed to have been the first to formally describe the modern decimal place value system and present rules governing the use of the zero symbol.
Detailed explanation4: The first recorded zero appeared in Mesopotamia around 3 B.C. The Mayans invented it independently circa 4 A.D. It was later devised in India in the midfifth century, spread to Cambodia near the end of the seventh century, and into China and the Islamic countries at the end of the eighth.
Detailed explanation5: It was alKhowarizmi 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.