Here, We will learn **how to get the maximum of difference of two number being first number as positive** **in go. **We can get it by using **Dim() function in math package in go golang.**

**Function prototype:**

`func Dim(x, y float64) float64`

**Return value:**

`Dim() function in math package returns`

maximum of x-y. If difference of x and y

or x is negative then it return 0.

**Example with code:**

```
package main
import (
"fmt"
"math"
)
func main() {
no := math.Dim(5, -2)
fmt.Printf("%.2f\n", no)
no = math.Dim(-5, -2)
fmt.Printf("%.2f\n", no)
no = math.Dim(-5, 2)
fmt.Printf("%.2f\n", no)
no = math.Dim(5, -5)
fmt.Printf("%.2f\n", no)
no = math.Dim(-2, 5)
fmt.Printf("%.2f\n", no)
}
```

**Output:**

`7.00`

0.00

0.00

10.00

0.00

**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/