日常生活中我们使用的数是十进制数
而计算机使用的数是二进制数,即数的进位方法是“逢二进一”
二进制数只使用数字0,1,如二进制数1101记为
,
通过式子
可以转换为十进制数13,仿照上面的转换方法,将二进制数
转换为十进制数是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8996adea957d009296f74eea8d9b133.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8996adea957d009296f74eea8d9b133.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589c1067adc1a594552ffc649589f9b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/412611cb33554746c2730bf27d54bc1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.4 | B.25 | C.29 | D.33 |
更新时间:2019-03-28 10:48:24
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