[python] What is the maximum float in Python?

I think the maximum integer in python is available by calling sys.maxint.

What is the maximum float or long in Python?

This question is related to python int long-integer max

The answer is


For all practical purposes, and with no import at all, one can use:

x = float("inf")

More detail on this related question: How can I represent an infinite number in Python?


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)

Examples related to python

programming a servo thru a barometer Is there a way to view two blocks of code from the same file simultaneously in Sublime Text? python variable NameError Why my regexp for hyphenated words doesn't work? Comparing a variable with a string python not working when redirecting from bash script is it possible to add colors to python output? Get Public URL for File - Google Cloud Storage - App Engine (Python) Real time face detection OpenCV, Python xlrd.biffh.XLRDError: Excel xlsx file; not supported Could not load dynamic library 'cudart64_101.dll' on tensorflow CPU-only installation

Examples related to int

How can I convert a char to int in Java? How to take the nth digit of a number in python "OverflowError: Python int too large to convert to C long" on windows but not mac Pandas: Subtracting two date columns and the result being an integer Convert bytes to int? How to round a Double to the nearest Int in swift? Leading zeros for Int in Swift C convert floating point to int Convert Int to String in Swift Converting String to Int with Swift

Examples related to long-integer

"OverflowError: Python int too large to convert to C long" on windows but not mac How to check a Long for null in java What is the difference between "long", "long long", "long int", and "long long int" in C++? java.math.BigInteger cannot be cast to java.lang.Long A long bigger than Long.MAX_VALUE Definition of int64_t How to convert string to long Convert python long/int to fixed size byte array Converting Long to Date in Java returns 1970 Division of integers in Java

Examples related to max

Min and max value of input in angular4 application numpy max vs amax vs maximum mongodb how to get max value from collections Python find min max and average of a list (array) Max length UITextField How to find the highest value of a column in a data frame in R? MAX function in where clause mysql Check if all values in list are greater than a certain number How do I get the max and min values from a set of numbers entered? SQL: Group by minimum value in one field while selecting distinct rows