Here, We will learnÂ **how to get base-e exponential of number minus 1 in go.Â **We can get it by usingÂ **Expm1() function in math package in go golang.**

**Function prototype:**

`func Expm1(no float64) float64`

**Return value:**

`Expm1() function in math package returns the`

e**x - 1, the base-e exponential of x minus 1.

**Example with code:**

```
package main
import (
"fmt"
"math"
)
func main() {
no := math.Expm1(0.09)
fmt.Printf("%.3f\n", no)
no = math.Expm1(0.01)
fmt.Printf("%.3f\n", no)
no = math.Expm1(1)
fmt.Printf("%.3f\n", no)
no = math.Expm1(-0.03)
fmt.Printf("%.3f\n", no)
}
```

**Output:**

`0.094`

0.010

1.718

-0.030

**To learn more about golang, Please refer given below link:**

https://www.techieindoor.com/go-lang-tutorial/

**References:**

https://golang.org/doc/

https://golang.org/pkg/