formSquareRoot() Replaces this value with its square root, rounded to a representable value. Declarationmutating func formSquareRoot() See AlsoPerforming CalculationsFloating-Point Operators for DoubleaddingProduct(_:_:)addProduct(_:_:)squareRoot()remainder(dividingBy:)formRemainder(dividingBy:)truncatingRemainder(dividingBy:)formTruncatingRemainder(dividingBy:)negate()