Question

How to set the precision for new values created as a result of arithmetic in Python

Answer 1

import decimal     

d = decimal.Decimal('0.1234567')     

for i in range(1, 6):         
    decimal.getcontext().prec = i         
    print(i, ':', d * 1)
    
    

'''
run:

1 : 0.1
2 : 0.12
3 : 0.123
4 : 0.1235
5 : 0.12346

'''

 

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