API · Python
Python math.isfinite() Method
The math.isfinite() is an in-built python function used to check whether a number is infinite or not.
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Python math.isfinite() method is an efficient way of finding whether a number is finite or not. Note that 0.0 is considered a finite number.
Syntax
math.isfinite(x)
Parameters
x |
The required value (negative or positive) to check. |
Returns
This method returns a Boolean value. It returns True if x is a finite value or not a NaN; otherwise, False.
Example Code: Use of the math.isfinite() Method
Example Code:
import math
x = 100
value = math.isfinite(x)
print(f"Is {x} a finite number? {value}")
x = 0
value = math.isfinite(x)
print(f"Is {x} a finite number? {value}")
x = -98.67
value = math.isfinite(x)
print(f"Is {x} a finite number? {value}")
x = math.inf
value = math.isfinite(x)
print(f"Is {x} a finite number? {value}")
x = -math.inf
value = math.isfinite(x)
print(f"Is {x} a finite number? {value}")
value = math.isfinite((float("nan")))
print(f"Is NaN a finite number? {value}")
Output:
Is 100 a finite number? True
Is 0 a finite number? True
Is -98.67 a finite number? True
Is inf a finite number? False
Is -inf a finite number? False
Is NaN a finite number? False
Note that the above code shows how we can use this method.
