±d.ffff...×10±eeee...Floating point describes a system for numerical representation in which a string of digits (or bits) represents a rational number. For example, a fixed-point representation that has seven decimal digits, with the decimal point assumed to be positioned after the fifth digit, can represent the numbers
12345.67, 8765.43, 123.00, ...whereas a floating-point representation with seven decimal digits could in addition represent
1.234567, 123456.7, 0.00001234567, 1234567000000000, ...A number in scientific notation that has no leading 0s is called a normalized number and floating-point numbers should be normalized. Examples of normalized FP numbers include
5.341×103 and -1.101101×2-3and examples of not normalized FP numbers include
0.05341×105 and -1101.101×2-6Normalized floating points have many advantages and hardware using them is standardized, therefore simplified.
I wanted to speak up during the meeting, but I held my peace (be silent). |