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 May 1994, the network arranged a deal with New World Communications, which saw nearly all of that group's stations (most of which were VHF outlets) becoming Fox affiliates. Fox then acquired New World Communications outright in July 1996, and those VHF stations (including one in Dallas) became Fox owned-and-operated stations in the process. The network, however, did acquire more UHF O&Os in subsequent years, including Philadelphia's WTXF-TV (channel 29) in 1995, Orlando's WOFL (channel 35) in 2002 and Charlotte's WJZY (channel 46) in 2013. As a result of the New World deal, CBS lost its longtime Detroit affiliate WJBK