PYTHON

decimal in python

>>> from decimal import *
>>> getcontext().prec = 6
>>> Decimal(1) / Decimal(7)
Decimal('0.142857')
>>> getcontext().prec = 28
>>> Decimal(1) / Decimal(7)
Decimal('0.1428571428571428571428571429')

Python Decimal

from decimal import Decimal
>>> Decimal('1.2')
Decimal('1.2')

Python Decimal

>>> (1.1 + 2.2) == 3.3
False