[Tutor] What does ^ and | mean?

[tee chwee liong]

thanks for showing the path.. :) 
 


From: waynejwerner at gmail.com
Date: Fri, 28 Jan 2011 09:17:36 -0600
Subject: Re: [Tutor] What does ^ and | mean?
To: tcl76 at hotmail.com
CC: tutor at python.org


On Fri, Jan 28, 2011 at 9:09 AM, tee chwee liong <tcl76 at hotmail.com> wrote:


hi,
 
i'm confuse on how does ^ and | mean. When i tried |, i thought it is addition but 4|4 also give 4?



They're called bitwise operators:
http://wiki.python.org/moin/BitwiseOperators


+ is the addition operator:
4 + 2 == 6
4 + 4 == 8


| is the bitwise OR
 

>>> 4|2
6
>>> 4|1
5
>>> 4|3
7
>>> 4|4
4
 
When i tried ^, looks like subtraction but 2^4 gives 6?



 ^ is the bitwise XOR
- is subtraction



 

>>> 2^3
1
>>> 2^2
0
>>> 2^4^ is the XOR operator
6
 
Pls help to clear my confusion. thanks.



For more information about bitwise operations, wikipedia is your friend!


http://en.wikipedia.org/wiki/Bitwise_operation


HTH,
Wayne  		 	   		  
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