You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: sqrt.go
    path of file: ./repos/100DaysOfCode/Day 020 - Go Lang App/Go/src/mymath
    
    the code of the file until where you have to start completion: // Source code of $GOPATH/src/mymath/sqrt.go
package mymath

func Sqrt(x flo
    
func Sqrt(x float64) float64 {
    z := 0.0
    for i := 0; i < 1000; i++ {
        z -= (z*z - x) / (2 * x)
    }
    return z
}