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Python math.isinf() Method

❮ Math Methods

Example

Check whether a value is infinity or not:

# Import math Library
import math

# Check whether some values are infinite
print (math.isinf (56))
print (math.isinf (-45.34))
print (math.isinf (+45.34))
print (math.isinf (math.inf))
print (math.isinf (float("nan")))
print (math.isinf (float("inf")))
print (math.isinf (float("-inf")))
print (math.isinf (-math.inf))
Try it Yourself »

Definition and Usage

The math.isinf() method checks whether a value is positive or negative infinity, or not. This method returns a Boolean value: True if the value is infinity, otherwise False.

Syntax

math.isinf(x)

Parameter Values

Parameter Description
x Required. The value to check for infinity

Technical Details

Return Value: A bool value, True if the value is infinity, otherwise False
Python Version: 2.6

❮ Math Methods