Arabic numerals different values, but also had the lower 4 bits equal to the digit value. Arabic numerals Arabic numerals, also called Hindu–Arabic numerals, are the ten digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9; or numerals written using them in the Hindu–Arabic numeral system (where the position of a digit indicates the power of 10 to multiply it by). It is the most common system for the symbolic representation of numbers in the world today. The Hindu-Arabic numeral system was developed by Indian mathematicians around AD 500 using quite different forms of the numerals. From India, the system
Roman numerals Arabic numerals being used for divisions and armies. In music, Roman numerals are used in several contexts: In pharmacy, Roman numerals are used in some contexts, including to denote "one half" and to mean "nothing". (See the sections below on "zero" and "fractions".) In photography, Roman numerals (with zero) are used to denote varying levels of brightness when using the Zone System. In seismology, Roman numerals are used to designate degrees of the Mercalli intensity scale of earthquakes. In sport the team containing the "top" players and representing a club or a school at the highest level in (say) rugby