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 WB); WWOR-TV (channel 9) in Secaucus, New Jersey (part of the New York City market) and KCOP-TV (channel 13) in Los Angeles were de facto O&Os prior to Viacom's buyout of Chris-Craft's stake in UPN, while WPWR-TV (channel 50) in Chicago was an affiliate of UPN throughout the network's run (and would not be co-owned with the two other larger-market stations until after Fox purchased it from Newsweb Corporation in 2002). In September 2006, these stations became O&Os of MyNetworkTV, which was created in response to The CW's decision to affiliate stations owned by Tribune Broadcasting and network part-owner CBS