# math – Is there a short-hand for nth root of x in Python?

## math – Is there a short-hand for nth root of x in Python?

nth root of `x`

is `x^(1/n)`

, so you can do `9**(1/2)`

to find the 2nd root of 9, for example. In general, you can compute the nth root of x as:

```
x**(1/n)
```

**Note**: In Python 2, you had to do `1/float(n)`

or `1.0/n`

so that the result would be a `float`

rather than an `int`

. For more details, see Why does Python give the wrong answer for square root?

You may also use some logarithms:

Nth root of `x`

:

```
exp(log(x)/n)
```

For example:

```
>>> from math import exp, log
>>> x = 8
>>> n = 3
>>> exp(log(x)/n)
2.0
```

#### math – Is there a short-hand for nth root of x in Python?

Also: `x**(n**-1)`

, which is the same but shorter than `x**(1/float(n))`