A system on the web for octuple-precision computation

Online octo-system, an Web system to provide remote users with the facility of octuple-precision computation, i.e. 256-bit floating-point (15-bit exponent and 240-bit mantissa) operations, is described. By simply supplying the required data on the Web page any users with no knowledge of programming can obtain results computed in about 72 significant digits. Also available in the system are more than 70 mathematical functions, say, fundamental functions such as sine and cosine functions as well as special functions like the Bessel function.