3131	 FOCUS Microcomputer Number System	 FOCUS is a number system and supporting computational algorithms especially useful for microcomputer control and other signal processing applications. FOCUS has the wide-ranging character of floating-point numbers with a uniformity of state distributions that give FOCUS better than a twofold accuracy advantage over an equal word length floating-point system. FOCUS computations are typically five times faster than single precision fixed-point or integer arithmetic for a mixture of operations comparable in speed with hardware arithmetic for many applications. Algorithms for -bit and -bit implementations of FOCUS are included. Number representation logarithmic arithmetic computational speed computational accuracy microcomputer applications
