Python math.isinf() Method
Python math ModulePython math.isinf()The method determines whether x is infinity. Returns True if x is positive or negative infinity, otherwise returns False.
Python Version: 2.6
Syntax
The syntax of the math.isinf() method is as follows:
math.isinf(x)
Parameter Description:
- x-- Required, a number. Returns TypeError if x is not a number.
Return Value
Returns a boolean value. Returns True if x is positive or negative infinity, otherwise returns False.
Example
The following example checks whether a number is infinity:
Example
# Import the math package
import math
# Check whether the number is infinity
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))
import math
# Check whether the number is infinity
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))
Output result:
False False False True False True True TrueOther Extensions