Python cmath.isinf() Method

Example

Check whether a complex value is infinite or not:

#import cmath for complex number operations
import cmath

#find whether a complex number is infinite or not
print (cmath.isinf(complex(10 + float('inf'))))
print (cmath.isinf(11 + 4j))

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Definition and Usage

The cmath.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

cmath.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

❮ cmath Methods