below python code results different output than in real maths

Question

Below code's output different result , while in daily mathematics it results same

d=1.11-1.10 
e=2.11-2.10  
print('d= ', d ,'e= ' , e)

Next time please also show the output of the program so that people don't need to guess what you mean. — JJJ, Apr 18 '18 at 09:24

score 1 · Answer 1 · answered Apr 18 '18 at 09:22

you are using floating point mathematics, which has limited accuracy. The results are expected!

If you want accurate results, you could use decimal arithmetics:

from decimal import Decimal
Decimal('1.11') - Decimal('1.10')
Decimal('2.11') - Decimal('2.10')

1 Answers1