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Differences Between: [Versions 310 and 311] [Versions 39 and 311]

   1  <?php
   2  
   3  /**
   4   *
   5   * Function code for the complex division operation
   6   *
   7   * @copyright  Copyright (c) 2013-2018 Mark Baker (https://github.com/MarkBaker/PHPComplex)
   8   * @license    https://opensource.org/licenses/MIT    MIT
   9   */
  10  namespace Complex;
  11  
  12  /**
  13   * Divides two or more complex numbers
  14   *
  15   * @param     array of string|integer|float|Complex    $complexValues   The numbers to divide
  16   * @return    Complex
  17   */
  18  function divideinto(...$complexValues): Complex
  19  {
  20      if (count($complexValues) < 2) {
  21          throw new \Exception('This function requires at least 2 arguments');
  22      }
  23  
  24      $base = array_shift($complexValues);
  25      $result = clone Complex::validateComplexArgument($base);
  26  
  27      foreach ($complexValues as $complex) {
  28          $complex = Complex::validateComplexArgument($complex);
  29  
  30          if ($result->isComplex() && $complex->isComplex() &&
  31              $result->getSuffix() !== $complex->getSuffix()) {
  32              throw new Exception('Suffix Mismatch');
  33          }
  34          if ($result->getReal() == 0.0 && $result->getImaginary() == 0.0) {
  35              throw new \InvalidArgumentException('Division by zero');
  36          }
  37  
  38          $delta1 = ($complex->getReal() * $result->getReal()) +
  39              ($complex->getImaginary() * $result->getImaginary());
  40          $delta2 = ($complex->getImaginary() * $result->getReal()) -
  41              ($complex->getReal() * $result->getImaginary());
  42          $delta3 = ($result->getReal() * $result->getReal()) +
  43              ($result->getImaginary() * $result->getImaginary());
  44  
  45          $real = $delta1 / $delta3;
  46          $imaginary = $delta2 / $delta3;
  47  
  48          $result = new Complex(
  49              $real,
  50              $imaginary,
  51              ($imaginary == 0.0) ? null : max($result->getSuffix(), $complex->getSuffix())
  52          );
  53      }
  54  
  55      return $result;
  56  }