complex_implementation.dart

import "dart:math";

class Complex {
  double real;
  double imaginary;

  Complex(this.real, this.imaginary);

  Complex.polar(double magnitude, double angle) {
    this.real = magnitude * cos(angle);
    this.imaginary = magnitude * sin(angle);
  }
  factory Complex.polarFactory(double magnitude, double angle) {
    var real = magnitude * cos(angle);
    var imaginary = magnitude * sin(angle);
    return Complex(real, imaginary);
  }

  String toString() =>
      '${real.toStringAsFixed(1)} ${imaginary.toStringAsFixed(1)}';
}

void main() {
  Complex a = Complex(-1, 0);
  Complex b = Complex.polar(1, pi);
  Complex c = Complex.polarFactory(1, pi);
  print(a);
  print(b);
  print(c);
}