30 lines
484 B
Go
30 lines
484 B
Go
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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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// This is a method - a function that implements a receiver (the part between "func" and "Abs()")
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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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// The method above has the same functionality as the function below
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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 main() {
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v := Vertex{3,4}
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fmt.Println(v.Abs())
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w := Vertex{3,4}
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fmt.Println(Abs(w))
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}
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