Swift:
복소수 다루기

struct ComplexNumber {
    var real: Double
    var imaginary: Double
    
    func add(_ other: ComplexNumber) -> ComplexNumber {
        return ComplexNumber(real: real + other.real, imaginary: imaginary + other.imaginary)
    }
    
    // 뺄셈, 곱셈 등의 추가 메소드
}

let first = ComplexNumber(real: 2, imaginary: 3)
let second = ComplexNumber(real: 1, imaginary: 4)
let result = first.add(second)
print("결과: \(result.real) + \(result.imaginary)i")
// 샘플 출력: 결과: 3.0 + 7.0i