package org.djutils.complex.demo;
   
   import org.djutils.complex.Complex;
   import org.djutils.complex.ComplexMath;
   
   /**
    * ComplexDemo.java. <br>
    * <br>
    * Copyright (c) 2021-2022 Delft University of Technology, Jaffalaan 5, 2628 BX Delft, the Netherlands. All rights reserved. See
   * for project information <a href="https://djutils.org" target="_blank"> https://djutils.org</a>. The DJUTILS project is
   * distributed under a three-clause BSD-style license, which can be found at
   * <a href="https://djutils.org/docs/license.html" target="_blank"> https://djutils.org/docs/license.html</a>. <br>
   * @author <a href="https://www.tudelft.nl/averbraeck">Alexander Verbraeck</a>
   * @author <a href="https://www.tudelft.nl/pknoppers">Peter Knoppers</a>
   */
  public final class ComplexDemo
  {
      /**
       * Do not instantiate.
       */
      private ComplexDemo()
      {
          // Do not instantiate
      }
  
      /**
       * Demonstrate the Complex class.
       * @param args String[]; the command line arguments (not used).
       */
      public static void main(final String[] args)
      {
          constructors();
          System.out.println();
          fieldsGettersNormAndPhi();
          System.out.println();
          constants();
          System.out.println();
          binaryOps();
          System.out.println();
          mathFunctions();
      }
  
      /**
       * Constructors.
       */
      public static void constructors()
      {
          Complex z1 = new Complex(123.456, -345.678);
          System.out.println(z1);
          Complex z2 = new Complex(543.210); // Create a complex with imaginary component 0.0
          System.out.println(z2);
      }
  
      /**
       * Fields, getters, norm and phi.
       */
      public static void fieldsGettersNormAndPhi()
      {
          Complex z = new Complex(123.456, -345.678);
          System.out.println("re=" + z.re + ", im=" + z.im + ", getRe:" + z.getRe() + ", getIm:" + z.getIm() + ", norm:"
                  + z.norm() + ", phi:" + z.phi());
      }
      
      /**
       * Constants.
       */
      public static void constants()
      {
          System.out.println("ZERO=" + Complex.ZERO);
          System.out.println("ONE=" + Complex.ONE);
          System.out.println("MINUS_ONE=" + Complex.MINUS_ONE);
          System.out.println("I=" + Complex.I);
          System.out.println("MINUS_I=" + Complex.MINUS_I);
      }
      
      /**
       * Binary operations.
       */
      public static void binaryOps()
      {
          Complex z1 = new Complex(3, 4);
          Complex z2 = new Complex(-2, 5);
          System.out.println("z1=" + z1);
          System.out.println("z2=" + z2);
          System.out.println("z1 + z2=" + z1.plus(z2));
          System.out.println("z1 - z2=" + z1.minus(z2));
          System.out.println("z1 * z2=" + z1.times(z2));
          System.out.println("z1 / z2=" + z1.divideBy(z2));
          System.out.println("z1 * I=" + z1.times(Complex.I));
          System.out.println("I * I=" + Complex.I.times(Complex.I));
      }
  
      /**
       * Math functions.
       */
      public static void mathFunctions()
      {
          Complex z = new Complex(3, -5);
          System.out.println(z);
         System.out.println(ComplexMath.sqrt(z));
         System.out.println(ComplexMath.sqrt(z).rotate(Math.PI));
         System.out.println(ComplexMath.sqrt(z).times(-1));
         System.out.println(ComplexMath.cbrt(z));
         System.out.println(ComplexMath.cbrt(z).rotate(2 * Math.PI / 3));
         System.out.println(ComplexMath.cbrt(z).rotate(4 * Math.PI / 3));
         System.out.println(ComplexMath.exp(z));
         System.out.println(ComplexMath.ln(z));
         System.out.println(ComplexMath.sin(z));
         System.out.println(ComplexMath.cos(z));
         System.out.println(ComplexMath.tan(z));
         System.out.println(ComplexMath.asin(z));
         System.out.println(ComplexMath.acos(z));
         System.out.println(ComplexMath.atan(z));
         System.out.println(ComplexMath.sinh(z));
         System.out.println(ComplexMath.cosh(z));
         System.out.println(ComplexMath.tanh(z));
         System.out.println(ComplexMath.asinh(z));
         System.out.println(ComplexMath.acosh(z));
         System.out.println(ComplexMath.atanh(z));
     }
     
 }