Intel 64 and IA-32 Architectures Software Developers Manual Volume 1, Basic Architecture

4-16 Vol. 1
DATA TYPES
Figure 4-10. Binary Real Number System
Figure 4-11. Binary Floating-Point Format
Binary Real Number System
Subset of binary real numbers that can be represented with
IEEE single-precision (32-bit) floating-point format
+10
10.0000000000000000000000
1.11111111111111111111111
Precision
24 Binary Digits
Numbers within this range
cannot be represented.
ςς ςς
-100 -10
-1
0
1
10
100
ςς ςς
-100 -10
-1
0
1
10
100
Sign
Integer or J-Bit
Exponent Significand
Fraction