Digits of Zero
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Joke ID  #16042 
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Category  Tech 
Submitted By  shenqiang 
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Is zero a 1digit number or a 0digit number, or neither?
You may think that 0 is a 1digit number. However, this will make 00 a 2digit number, 000 a 3digit number, and so on. Leading zeros do not count towards the digits, and 0 itself is a leading zero.
If you think that 0 is a 0digit number, you're still wrong. 100 is a 3digit number, 10 is a 2digit number, 1 is a 1digit number, and therefore, .1 is a 0digit number, .01 is a 1digit number, and so on. Therefore, the number of digits of a real number x is 1+int(lgx). Since lg0 is meaningless, the number of digits of 0 can't be defined.
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