.squareRoot()

code

func hypotenuse(_ a: Double, _ b: Double) -> Double {
    return (a * a + b * b).squareRoot()
}

📘 手冊

• Swift ⟩ Numbers and Basic Values ⟩ Numeric Protocols ⟩ FloatingPoint

  • .squareRoot()

👥 相關

• 🅿️ Vector2D