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 VHF stations to Buffalo (WKBW-TV, channel 7) and Hartford (WTIC-TV channel 3, now WFSB), NBC decided that its experiment was a lost cause, and put WBUF and WNBC up for sale. While it found a buyer for WNBC (which retained its NBC affiliation), there were no takers for WBUF, and it went off the air in 1958. NBC then affiliated with WGR-TV, where it remains to this day. NBC donated WBUF's license and some of its equipment to PBS member station WNED-TV, which took over the channel 17 frequency in 1959 (due to a number of transactions, the WBUF-TV license