Why not Accurate???

Question

in python, many calculations are not accurate.
Why is so?

For example:
https://code.sololearn.com/cv5pz1sy3grG/

Answer 1

Floating-point numbers are represented in computer hardware as base 2 (binary) fractions. https://docs.python.org/3/tutorial/floatingpoint.html

Answer 2

Fore more accuracy, use the decimal module.

from decimal import Decimal, getcontext
getcontext().prec = 5

print(Decimal(3.3) * Decimal(3)) # 9.9000

Answer 3

Ｔａͣｌｈͪａͣ＿ͥ
Line 10 where you get the input, convert to float:
i = float(input(''))
Line 28 to print, you can specify precision with string formatting too:
print(f'{i} x {n} = {i*n:.5f}')

Answer 4

Ok that is a solution, but why does it shows slight difference?

Answer 5

https://code.sololearn.com/crr3SPxPeW2g/

For example if i program to make a table of some input.... input could be floating or int number...... what should be ammended there?