Volume of Hemi-Sphere printing as zero-CodePudding

I created a program to calculate volume of hemisphere using go ,the program is printing the volume as zero :

package main

import (
    "fmt"
    "math"
)

func volumeHemisphere(radius float64) float64 {
    return 2 / 3 * math.Pi * math.Pow(radius, 3)
}

func main() {
    fmt.Println(volumeHemisphere(2.0))
    
}

CodePudding user response：

Modify your code as float64(2)/float64(3)* math.Pi * math.Pow(radius, 3)

package main

import (
    "fmt"
    "math"
)

func volumeHemisphere(radius float64) float64 {
    return float64(2) / float64(3) * math.Pi * math.Pow(radius, 3)
}

func main() {
    fmt.Println(volumeHemisphere(2))
    
}

Output:

16.755160819145562