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Shell Programming and Scripting

a tip in python commands >> and <<

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Top Forums Shell Programming and Scripting a tip in python commands >> and <<
# 1  
Old 04-22-2010
a tip in python commands >> and <<
q = ((i + 2) * 6) >> 3
what's the meaning in python?
# 2  
Old 04-22-2010
Pretty much the same as in any other language with C-like operators. Other than that I can only say that it smells of homework, and as such wouldn't be permitted in the main forums.
# 3  
Old 04-22-2010
>> and << are bitwise shift operators.

So consider the binary representation of the number and shift it accordingly...

In your case the ">> 3" means shift three steps, kinda like here dropping the last three binary digits e.g.:
Code:
 71 is 1000111 , shifting 3 bits gives 1000 = 8

 72 is 1001000, shifting 3 bits gives 1001 = 9

#  python
>>> print 71 >> 3
8
>>> print 72 >> 3
9

HTH
# 4  
Old 04-22-2010
i don't understand your answer. I can't find this operator in a guide.

---------- Post updated at 06:01 AM ---------- Previous update was at 05:59 AM ----------

ok is a SHIFT operator!!
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