Topic summary
Decimal notation

Extracted from the Wikipedia article Decimal.
Decimal notation
For writing numbers, a decimal system typically uses ten decimal digits, a decimal mark, and, for negative numbers, a minus sign "−". The decimal digits in Arabic numerals are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9; the decimal separator is the dot "." in many countries (mostly English-speaking), and a comma "," in other countries.