Editing Integer (section)

==Computer science==
{{Main|Integer (computer science)}}
An integer is often a primitive [[data type]] in [[computer language]]s. However, integer data types can only represent a [[subset]] of all integers, since practical computers are of finite capacity. Also, in the common [[two's complement]] representation, the inherent definition of [[sign (mathematics)|sign]] distinguishes between "negative" and "non-negative" rather than "negative, positive, and&nbsp;0". (It is, however, certainly possible for a computer to determine whether an integer value is truly positive.) Fixed length integer approximation data types (or subsets) are denoted ''int'' or Integer in several programming languages (such as [[Algol68]], [[C (computer language)|C]], [[Java (programming language)|Java]], [[Object Pascal|Delphi]], etc.).

Variable-length representations of integers, such as [[bignum]]s, can store any integer that fits in the computer's memory. Other integer data types are implemented with a fixed size, usually a number of bits which is a power of&nbsp;2 (4, 8, 16, etc.) or a memorable number of decimal digits (e.g., 9 or&nbsp;10).