Complex.java

package jetbrains.mps.samples.complex.runtime;

/*Generated by MPS */


public class Complex {
  private static double EPSILON = 0.000001;
  private static Complex I = new Complex(0, 1);
  private double myReal;
  private double myImaginary;
  public Complex(double real, double imaginary) {
    this.myReal = real;
    this.myImaginary = imaginary;
  }
  public double getReal() {
    return this.myReal;
  }
  public double getImaginary() {
    return this.myImaginary;
  }
  public double getAbs() {
    return Math.sqrt(this.myReal * this.myReal + this.myReal * this.myImaginary);
  }
  public double getArg() {
    double r = this.getAbs();
    if (r > EPSILON) {
      double result = Math.acos(this.myReal / r);
      if (this.myImaginary > 0.0) {
        return result;
      } else {
        return -1 * result;
      }
    } else {
      return 0.0;
    }
  }
  @Override
  public String toString() {
    if (this.myImaginary == 0) {
      return this.myReal + "";
    }
    if (this.myReal == 0) {
      return ((this.myImaginary >= 0 ? "" : "-")) + Math.abs(this.myImaginary) + "i";
    }
    return this.myReal + ((this.myImaginary >= 0 ? " + " : " - ")) + Math.abs(this.myImaginary) + "i";
  }
  public Complex getConjugative() {
    return new Complex(this.myReal, -1 * this.myImaginary);
  }
  public Complex degree(int n) {
    return getComplexPolar(Math.pow(this.getAbs(), n), this.getArg() * n);
  }
  public static Complex sum(Complex c1, Complex c2) {
    return new Complex(c1.myReal + c2.myReal, c1.myImaginary + c2.myImaginary);
  }
  public static Complex divide(Complex c1, Complex c2) {
    double r = c2.getAbs();
    double a1 = c1.myReal * c2.myReal + c1.myImaginary * c2.myImaginary;
    double a2 = c1.myReal * c2.myImaginary - c1.myImaginary * c2.myReal;
    return new Complex(a1 / r, a2 / r);
  }
  public static Complex sub(Complex c1, Complex c2) {
    return new Complex(c1.myReal - c2.myReal, c1.myImaginary - c2.myImaginary);
  }
  public static Complex product(Complex c1, Complex c2) {
    return new Complex(c1.myReal * c2.myReal - c1.myImaginary * c2.myImaginary, c1.myReal * c2.myImaginary + c1.myImaginary * c2.myReal);
  }
  public static Complex getComplexPolar(double abs, double arg) {
    return new Complex(abs * Math.cos(arg), abs * Math.sin(arg));
  }
  public static Complex getI() {
    return I;
  }
}