## Cube Root of a Number

To find cube root of a number in Go language, use Cbrt() function of math package. Cbrt(x) returns the cube root value of x.

In this tutorial, we will learn the syntax of Cbrt() function, and how to use this function to find the cube root of a given number.

### Syntax

The syntax of Cbrt() function is

`math.Cbrt(x)`

where `x` is a floating point value of type float64.

Please note that we have to import “math” package to use Cbrt() function.

Return Value

The function returns a floating point value of type float64.

### Examples

#### Cube Root of Positive Number

In the following program, we take a positive value in `x`, and find its cube root.

example.go

```package main

import (
"fmt"
"math"
)

func main() {
var x float64 = 8
result := math.Cbrt(x)
fmt.Println("Cube root of 8 is :", result)
}```

Output

`Cube root of 8 is : 2`

#### Cube Root of Negative Number

In the following program, we take a negative value in `x`, and find its cube root.

example.go

```package main

import (
"fmt"
"math"
)

func main() {
var x float64 = -8
result := math.Cbrt(x)
fmt.Println("Cube root of -8 is :", result)
}```

Output

`Cube root of -8 is : -2`

### Conclusion

In this Golang Tutorial, we learned how to find cube root of a given number in Go language, with example programs.