# Number in range

Python, Math · Sep 15, 2020

Checks if the given number falls within the given range.

- Use arithmetic comparison to check if the given number is in the specified range.
- If the second parameter,
`end`

, is not specified, the range is considered to be from`0`

to`start`

.

```
def in_range(n, start, end = 0):
return start <= n <= end if end >= start else end <= n <= start
```

```
in_range(3, 2, 5) # True
in_range(3, 4) # True
in_range(2, 3, 5) # False
in_range(3, 2) # False
```