Assertion: arabic numeral | /r/HasProperty | based on the numbers of af angles
Facets:
value: in each number
type: OTHER
Source sentences:
text: The Arab numerals used in north Africa and then in the rest of the world were invented by the famous Muslim mathematician al-Khwarizmi (known as the father of computing because he invented the algorithmic system), the Arabic numerals were based on the numbers of af angles in each number while the zero is round (no angles) and then have nothing to do with India or Hindu.