How can I convert negative integer to binary in python? [duplicate] - python

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.

Related

finding PI value using "Python" [duplicate]

This question already has answers here:
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.

Python convert binary to int [duplicate]

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

How to round up 10.3 to get 10.30? [duplicate]

This question already has answers here:
How to display a float with two decimal places?
(13 answers)
How to format a floating number to fixed width in Python
(10 answers)
Closed 2 years ago.
When we round off using python is there a way we get answer in 2 decimal place incase if:
round(10.3,2)
It will give 10.3.Is there way so that we get 10.30?
10.3 is the same number as 10.30 so rounding has nothing to do with it. Try string formatting.
n = 10.3
"{:.2f}".format(n) # classic str.format
f"{n:.2f}" # f-strings in 3.6+

Python - Binary to decimal [duplicate]

This question already has answers here:
Converting integer to binary in python
(17 answers)
Convert base-2 binary number string to int
(10 answers)
Closed 6 years ago.
I don't know much about Python, so sorry if this sounds silly. I am getting a string of 0s and 1s from an Arduino, and I need to convert it to a 'regular' number. I've found out how to convert a binary string to a decimal integer pretty easily, but how would I convert it if my binary string is stored in a variable ?
Let's say I've got a=00000110
int(a, 2) doesn't work (tells me "int() can't convert non-string with explicit base")
Is there a specific syntax that I should be aware of ? Can't I put a variable in here ?
Thanks in advance !

Python Unsigned Right Shift [duplicate]

This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
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.

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