Decimal and, only the best mathematicians were able to multiply or divide large numbers. These difficulties were completely solved with the introduction of the Hindu–Arabic numeral system for representing integers. This system has been extended to represent some non-integer numbers, called "decimal fractions" or "decimal numbers" for forming the "decimal numeral system". For writing numbers, the decimal system uses ten decimal digits, a decimal mark, and, for negative numbers, a minus sign "−". The decimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9; the decimal separator is the dot "" in many countries (including English speaking ones),
Repeating decimal repetition. Examples of such irrational numbers are the square root of 2 and . There are several notational conventions for representing repeating decimals. None of them are accepted universally. In English, there are various ways to read repeating decimals aloud. For example, formula_1 may be read "one point three repeating", "one point three repeated", "one point three recurring", or "one point three into infinity". In order to convert a rational number represented as a fraction into decimal form, one may use long division. For example, consider the rational number 5/74: etc. Observe that at each step we have a remainder;