27 lines
418 B
Go
27 lines
418 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 (v *Vertex) Scale(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 (v *Vertex) Abs() 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 main() {
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v := &Vertex{3, 4}
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fmt.Printf("Before scaling: %+v, Abs: %v\n", v, v.Abs())
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v.Scale(5)
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fmt.Printf("After scaling: %+v, Abs: %v\n", v, v.Abs())
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}
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