26 lines
290 B
Go
26 lines
290 B
Go
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"math"
|
||
|
|
)
|
||
|
|
|
||
|
|
type Vertex struct {
|
||
|
|
X, Y float64
|
||
|
|
}
|
||
|
|
|
||
|
|
func (v Vertex) Abs() float64 {
|
||
|
|
return math.Sqrt(v.X*v.X + v.Y*v.Y)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (v *Vertex) Scale(f float64) {
|
||
|
|
v.X = v.X * f
|
||
|
|
v.Y = v.Y * f
|
||
|
|
}
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
v := Vertex{3, 4}
|
||
|
|
v.Scale(10)
|
||
|
|
fmt.Println(v.Abs())
|
||
|
|
}
|