func main() {
fmt.Printf("Hello, world. Sqrt(2) = %v\n", newmath.Sqrt(2))
t := time.Now()
switch {
case t.Hour() < 12:
fmt.Println("Good morning!")
case t.Hour() < 17:
fmt.Println("Good afternoon.")
default:
fmt.Println("Good evening.")
}
var i = 3
fmt.Println("V: ", i*3*3)
}
func main() {
fmt.Printf("hello, world Sqrt(2) = %v\n", newmath.Sqrt(2))
}
func main() {
fmt.Println(newmath.Sqrt(2))
}