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