[Go] Calculating the distance between two points w/ struct.

package main

import (
    "fmt"
    "math"
)

type Point struct {
    x float64
    y float64
}

func main() {
    p := Point{x: 3.0, y: 4.0}
    q := Point{x: 0.0, y: 0.0}

    distance := math.Sqrt(math.Pow(p.x-q.x, 2) + math.Pow(p.y-q.y, 2))
    fmt.Println(distance)
}