Is floating point arbitrary precision available?

Question

Just for fun and because it was really easy, I\'ve written a short program to generate Grafting numbers, but because of floating point precision issues it\'s not finding som

Answer 1

use decimal, (here is a clearer example):

>>> 2.3-2.2
0.09999999999999964
>>> from decimal import Decimal
>>> Decimal('2.3')-Decimal('2.2')
Decimal('0.1')
>>> float(Decimal('2.3')-Decimal('2.2'))
0.1
>>>