This question already has answers here:
What does the ^ (XOR) operator do? [duplicate]
(6 answers)
Closed 2 years ago.
Shouldn't it be 8?
The same thing goes with 3 ^ 2. I also got 1.
This is confusing...
In Python, ^ is a bitwise XOR operator. I believe what you're looking for is the exponent operator, **. An example would be 2**3 which outputs 8, like I believe you were looking for.
The ^ operator does a bitwise XOR operation. In python to do power calculation use pow() function:
pow(3,2)
Or use **
3**2
Related
This question already has answers here:
Real world use cases of bitwise operators [closed]
(41 answers)
Bitwise operation and usage
(17 answers)
Closed 12 months ago.
I understand that the bitwise and operator (&) is equivalent to a product of two bit values. When would I use it?
Please also help me understand what num&1 does in the code below:
def func(num):
n = 1 + func((3*num+1) if num&1 else (num>>1))
return n
As the comments mentioned, num&1 is a bitwise AND between num and 1.
Since 1 in binary is ...000000001, the AND will result True iff the least significant bit of num is 1, in other words, if it is odd (here some explanation of binary)
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Calculation error with pow operator
(4 answers)
Closed 1 year ago.
Can someone explain the difference between these two expressions in Python:
(-1)**2 == 1
-1**2 == -1
Why do the parentheses change the outcome?
The parentheses means the whole value inside is will be raised to the power 2.
(-1)**2 == 1
So -1*-1 is 1
No parentheses means the - will be taken out of the equation and added to the end of the answer.
1) -1**2
2) 1**2
3) 1
4) -1
Python handles this the same way the world does :)
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Why is exponentiation applied right to left?
(4 answers)
Closed 2 years ago.
print (2**3**2)
Answer is 512.
Why 512 is answer not 64? Because ((2^3)^2) = 64
I want to know the inside math operation of print (2** 3**2)
The order of operations for exponentiation is right-to-left, not-left-to right. So:
2**3**2
is interpretted as:
2**(3**2) = 2**(9) = 512
This question already has answers here:
Why is exponentiation applied right to left?
(4 answers)
Closed 2 years ago.
Am New to python trying out some basic python function. Came across exponential
In python
2 ** 2 ** 3 is 256
But while in mathematics getting as 64.
Use parentheses. This will give the correct answer.
(2 ** 2) ** 3
Use parentheses
x = (2**2)**3
or:
pow(2,2*3)
This question already has answers here:
Floor division with negative number
(4 answers)
Closed 6 years ago.
I am currently working on python 2.7.
I observed that if we have : -10//6 the answer is -2 while 10//6 yields 1
Can i know why is there the difference?
// performs the floor operation.
10/6 is 1.666, the floor of which is 1
-10/6 is -1.666, the floor of which is -2