Express the following numbers in IEEE 32-bit floating point format
a. -5 (decimal)
b. 1/16 (decimal)
can you specify that ?
IEEE 754
2007-02-26 12:29 am
回答 (1)
2007-02-28 6:46 pm
✔ 最佳答案
(a)-5 = -1 x 5 = -1 x (1.25 x 22)
Sign = 1
Exponent = 127+2 = 129 = 100000012
Mantissa = 0.25 = 010 0000 0000 0000 0000 00002
Therefore,
-5 = 1100 0000 1010 0000 0000 0000 0000 00002
-5 = C0A0000016
(b)
1/16 = 0.0625 = +1 x (1.0 x 2-4)
Sign = 0
Exponent = 127-4 = 123 = 011110112
Mantissa = 1.0 = 000 0000 0000 0000 0000 00002
Therefore,
1/16 = 0011 1011 1000 0000 0000 0000 0000 00002
1/16 = 3D80000016
收錄日期: 2021-04-12 23:01:39
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