The **`math.isfinite()` function** in Python returns `True` if the value is `finite`; otherwise, it returns `False`. In other words, this function is used to check if the number is finite or not. 

Figure 1 shows the visual representation of the `math.isfinite()` function.

> The `math` module is required to use this function.

# Syntax
```python
math.isfinite(number)
```
# Parameter
This function requires the number as a parameter.

# Return value
This function returns `True` if the value is `finite`; otherwise, it returns `False`. 

# Example
The following example shows how to use `math.isfinite()` in Python.

import math

#number
print ("math.isfinite(4):", math.isfinite(4))
print ("math.isfinite(3.5):", math.isfinite(3.5))
print ("math.isfinite(-2.6):", math.isfinite(-2.6))
print ("math.isfinite(0):", math.isfinite(0))

#nan
print ("math.isfinite(nan):", math.isfinite(float("nan")))

#infinity
print ("math.isfinite(inf):", math.isfinite(float("inf")))
print ("math.isfinite(-inf):", math.isfinite(float("-inf")))



What is math.isfinite() in Python?

math.isfinite() in Python returns True for finite numbers and False otherwise, requiring the math module.