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Python float values are represented as 64-bit double-precision values. The maximum value any floating-point number can be is approx 1.8 x 10308. Any number greater than this will be indicated by the string inf in Python.
A signed 32-bit integer variable has a maximum value of 231 − 1 = 2,147,483,647, whereas an IEEE 754 32-bit base-2 floating-point variable has a maximum value of (2 − 2−23) × 2127 ≈ 3.4028235 × 1038.
You can get the maximum value that float can represent with sys. float_info. max . e+XXX means 10 to the power of XXX .
As we have discussed above, there is no limit or maximum value of an integer in Python 3, but there is a limit for integer in Python 2, after which the data type of the variable switches to a long data type. In Python 3, the sys. maxint does not exist as there is no limit or maximum value for an integer data type.
For float have a look at sys.float_info:
>>> import sys
>>> sys.float_info
sys.floatinfo(max=1.7976931348623157e+308, max_exp=1024, max_10_exp=308, min=2.2
250738585072014e-308, min_exp=-1021, min_10_exp=-307, dig=15, mant_dig=53, epsil
on=2.2204460492503131e-16, radix=2, rounds=1)
Specifically, sys.float_info.max:
>>> sys.float_info.max
1.7976931348623157e+308
If that's not big enough, there's always positive infinity:
>>> infinity = float("inf")
>>> infinity
inf
>>> infinity / 10000
inf
The long type has unlimited precision, so I think you're only limited by available memory.
sys.maxint is not the largest integer supported by python. It's the largest integer supported by python's regular integer type.
If you are using numpy, you can use dtype 'float128' and get a max float of 10e+4931
>>> np.finfo(np.float128)
finfo(resolution=1e-18, min=-1.18973149536e+4932, max=1.18973149536e+4932, dtype=float128)
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