簡単な実装. #read_go #CodePiece

CodePiece.go

package main

import (
	"fmt"
)

func Sqrt(x float64) float64 {

	z := 1.0
	
	for i := 0; i < 10; i++ {
		z -= (z*z - x) / (2*z)
		if z*z == x {
			return z
		}
	}
	return z 
}

func main() {
	fmt.Println(Sqrt(2))
}