Course of Raku / Essentials / Creating and calling functions / Exercises / Function to compute *xʸ*

# Solution: Function to compute *xʸ*

In this program, use the `**`

operator to compute the power.

## Code

Here is the solution:

```
sub f($x, $y) { $x ** $y }
say f(5, 3);
say f(2, 10);
say f(-4, 5);
```

🦋 Find the program in the file function-x-to-the-power-of-y.raku.

## Output

Run the program to confirm it prints correct answers:

```
$ raku exercises/functions/function-x-to-the-power-of-y.raku
125
1024
-1024
```

## Comment

This function also works with negative powers, for example:

```
say f(5, -1); # 0.2
say f(10, -2); # 0.01
```

## Next exercise

## Course navigation

← Associative data types / Interpolating hashes | More about functions →