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二進制

明同暗為二進制表示方式，數字則常用一同〇

二進制係逢2進位嘅進位制，只係用到0同1兩個數字記數，主要係電腦用。

運算

[編輯]

四則運算

[編輯]

喺二進制入面做四則運算其實同平時冇乜分別，照樣做返進位、退位就得：

  • 加法：0+0＝0，0+1＝1，1+0＝1，1+1＝10
  • 減法：0－0＝0，1－0＝1，1－1＝0，10－1＝1
  • 乘法：0×0＝0，0×1＝0，1×0＝0，1×1＝1
  • 除法：0÷1＝0，1÷1＝1

不過用二進制寫小數就好麻煩，十進制嘅0.2用二進制寫係0.00110，會用更多位。

拈加法

[編輯]

二進制入面有種特別嘅運算，叫做拈加法，好似平時做加法咁，但係唔使進位，喺博弈論入面會用到。

相關

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二進制
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