Double (basketball)

In basketball, a double is the accumulation of a double-digit number total in one of five statistical categories—points, rebounds, assists, steals, and blocked shots—in a game. Multiple players usually score double-digit points in any given basketball game; the double nomenclature is usually reserved for when a player has double-digit totals in more than one category. A double-double is the accumulation of a double-digit number total in two of the five categories in a game. The most common double-double combination is points-rebounds, followed by points-assists. Since the 1985–86 season, Tim Duncan leads the National Basketball Association (NBA) in the points-rebounds combination with 830 and John Stockton leads the points-assists combination with 709. A triple-double is the accumulation of a double-digit number total in three of the five categories in a game. The most common way to achieve a triple-double is through points, rebounds, and assists. Oscar Robertson leads the all-time NBA list with 181 and is the only player ever to average a triple-double for a season. LeBron James leads the list among active players with 40. A quadruple-double is the accumulation of a double-digit number total in four of the five categories in a game. This has occurred five times in the NBA. A quintuple-double is the accumulation of a double-digit number total in all five categories in a game. Two quintuple-doubles have been recorded by high school girls, but none have occurred in college or professional games. A similar accomplishment is the five-by-five, which is the accumulation of at least five points, five rebounds, five assists, five steals, and five blocks in a game. In the NBA, only Hakeem Olajuwon, Andrei Kirilenko and Draymond Green have accumulated multiple five-by-fives since the 1985–86 season.

Double-double (disambiguation)

A double-double is an individual basketball performance in which a player accumulates a double digit number total in two of five categories.

Double-double may also refer to:

Quadruple-precision floating-point format

In computing, quadruple precision (also commonly shortened to quad precision) is a binary floating-point-based computer number format that occupies 16 bytes (128 bits) in computer memory and whose precision is about twice the 53-bit double precision.

This 128 bit quadruple precision is designed not only for applications requiring results in higher than double precision, but also, as a primary function, to allow the computation of double precision results more reliably and accurately by minimising overflow and round-off errors in intermediate calculations and scratch variables: as William Kahan, primary architect of the original IEEE-754 floating point standard noted, "For now the 10-byte Extended format is a tolerable compromise between the value of extra-precise arithmetic and the price of implementing it to run fast; very soon two more bytes of precision will become tolerable, and ultimately a 16-byte format... That kind of gradual evolution towards wider precision was already in view when IEEE Standard 754 for Floating-Point Arithmetic was framed."