Patent ID: 6996591

Claim:
A system comprising: a first approximation apparatus to approximate a term 2 X , wherein X is a real number, the first approximation apparatus includes: a rounding apparatus to accept an input value (X), being the real number represented in a floating-point format, and to compute a first rounded value, (└X┘ integer ), by rounding the input value (X) using a floor technique for rounding downward to a nearest integer, wherein the first rounded value, (└X┘ integer ), is represented in an integer format, and an integer-to-floating-point converter to accept as input the first rounded value, (└X┘ integer ), and to convert the first rounded value, (└X┘ integer ), to a second rounded value, (└X┘ floating-point ), represented in floating-point format; and a central proccessing unit (CPU) coupled to the first approximation apparatus.