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Closed 10 years ago.
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How to get the logical right binary shift in python
How do I perform an unsigned right shift in python?
I.E. The java equivalent is this:
x >>> y or x >>>= y
Integers in Java have a fixed number of bits, but those in Python don't, so an unsigned right shift would be meaningless in Python.
Related
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Print pi to a number of decimal places
(8 answers)
Closed 2 years ago.
I am trying to get pi value in python. Here is my source code.
import math
pi_formatted_float = "{:.5000f}".format(math.pi)
print(pi_formatted_float)
Using the source code I only can get 48 decimal places. Others are only 00000000....
More simply, you can test with
>>> "{:.60f}".format(1/3)
'0.333333333333333314829616256247390992939472198486328125000000'
It's not just a problem of PI, but common in all float type. You may find more information from Limiting floats to two decimal points.
This question already has an answer here:
Python 3, Converting a string storing binary data to Int
(1 answer)
Closed 2 years ago.
Convert binary number to integer in python?
like if there is any inbuilt function to do so?
Any ideas?
bno = '1001'
int(bno, 2)
This can be used
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How do I do exponentiation in python? [duplicate]
(3 answers)
Closed 2 years ago.
I am new to programming and just started a course and stuck on a demo section where I have to take a math calculation and program it in Python. When I program it do you follow BEDMAS order of figuring out or is there a logical order. The syntax is correct but I keep being told it is not right
See the equation below to be programmed into python. What are the rules for telling Python to calculate something correctly where 5 is the exponent
Use Python to calculate (((1+2)∗3)/4)5
Exponentiation in Python is done with the ** operator.
For instance:
2**8
is 256.
In Python to calculate exponent you use ** operator.
Similar to multiplication but double asterisk.
(((1+2)∗3)/4)**5
This will give you 32.
That is because you are using values which are all integers, so 9 / 4 will be 2, not 2.25.
Python has operator precedence that follows algebraic rules.
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Why does Python return 0 for simple division calculation?
(6 answers)
What is the difference between '/' and '//' when used for division?
(16 answers)
Closed 4 years ago.
I have a line of Python code that doesn't work the way it should (at least to the best of my knowledge). Following is the code line:
print 'progress: {}%'.format((i/len(e_numbers))*100)
The value of i starts from 0 and goes up to length of e_numbers which is a list, while the length of e_numbers is around 17000. But the code always prints Progress: 0%.
Any idea why?
In Python 2, using / to divide two integers performs integer division by default, rounding the result down to the nearest integer value. Thus, as long as i is between 0 and len(e_numbers), i/len(e_numbers) is going to be 0. There are two possible solutions:
Cast one or both operands to a float before dividing, e.g., float(i)/len(e_numbers)
Put from __future__ import division at the top of your file so that / always produces a float.
This question already has answers here:
python3: How to get logical complement (negation) of a binary number, eg. '010' => '101'?
(5 answers)
Two Complement's Python (with as least bits as possible)
(1 answer)
Closed 4 years ago.
I need to convert negative number to binary in python.
How can I do it ?
EDIT: I need to use twos complement
bin(-2)
#'-0b10'
Use the built in binfunction to get a binary representation.