Quadruple-precision floating-point format special characteristics: In addition to the double-double arithmetic, it is also possible to generate triple-double or quad-double arithmetic if higher precision is required without any higher precision floating-point library. They are represented as a sum of three (or four) double-precision values respectively. They can represent operations with at least 159/161 and 212/215 bits respectively. A similar technique can be used to produce a double-quad arithmetic, which is represented as a sum of two quadruple-precision values. They can represent operations with at least 226 (or 227) bits. Quadruple precision is often implemented in software by a variety of techniques (such as
Owned-and-operated television stations in the United States in Green Bay, WFRV-TV (channel 5), and its satellite in Escanaba, Michigan, WJMN-TV (channel 3), to Liberty Media in exchange for common CBS stock held by Liberty Media; the sale of WFRV/WJMN closed on April 18, 2007. The Four Points transaction was approved by the FCC on November 21, 2007, and was finalized on January 10, 2008. In 2012, the Four Points stations were acquired by the Sinclair Broadcast Group; WFRV/WJMN was sold to the Nexstar Broadcasting Group in 2011. For much of the modern television era, NBC did not have an owned-and-operated station in Philadelphia. In 1955, NBC forced