Half precision floating point is a 16-bit binary floating-point interchange format. It was not part of the original ANSI/IEEE 754 Standard for Binary Floating-Point Arithmetic published in 1985 but is included in the current version of the standard, IEEE 754-2008 (previously known as IEEE 754r) which was published last August. See this Wikipedia article for background information. Floating point formats defined by this standard are classified as either interchange or non-interchange. In the standard storage formats are narrow interchange formats, i.e. the set of floating point values that can be stored by the specified binary encoding is a proper subset of wider floating