Decimal

Rare card · No. 66810

A decimal system (also called base-ten, denary or decenary) is a numeral system that uses ten as its radix (base). Decimal systems are the global standard for denoting integer and non-integer numbers. The way of denoting numbers in a decimal system is often referred to as decimal notation. Presently, the most common decimal system is the Hindu–Arabic numeral system, which is a positional numeral system. However, there are also non-positional base-ten systems, such as Roman or Chinese numerals. A decimal numeral (also often just decimal or, less correctly, decimal number), generally refers to the notation of a number in a decimal numeral system. Non-integral decimals may be identified by a decimal separator (usually "." or "," as in 25.9703 or 3.1415). In English, the word decimal often refers to the digits after the decimal separator, for example, that "3.14 is the approximation of π to two decimals" or "two decimal places." The numbers that may be represented exactly by a decimal of finite...

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