Floating Point Numbers (1)
N = M ´ rE, where (1.13)
- M (mantissa or significand) is a significant digits of N
- E (exponent or characteristic) is an integer exponent.
In general, N = ± (an-1 ... a0 .a-1 ... a-m)r is represented by
- N = ± (.an-1 ... a-m)r ´ rn
M is usually represented in sign magnitude:
- M = (SM.an-1 ... a-m)rsm , where (1.14)
- (.an-1 ... a-m)r represents the magnitude
- SM = (0: positive, 1: negative) (1.15)