Operations.php 7.1 KB

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  1. <?php
  2. namespace Complex;
  3. use InvalidArgumentException;
  4. class Operations
  5. {
  6. /**
  7. * Adds two or more complex numbers
  8. *
  9. * @param array of string|integer|float|Complex $complexValues The numbers to add
  10. * @return Complex
  11. */
  12. public static function add(...$complexValues): Complex
  13. {
  14. if (count($complexValues) < 2) {
  15. throw new \Exception('This function requires at least 2 arguments');
  16. }
  17. $base = array_shift($complexValues);
  18. $result = clone Complex::validateComplexArgument($base);
  19. foreach ($complexValues as $complex) {
  20. $complex = Complex::validateComplexArgument($complex);
  21. if ($result->isComplex() && $complex->isComplex() &&
  22. $result->getSuffix() !== $complex->getSuffix()) {
  23. throw new Exception('Suffix Mismatch');
  24. }
  25. $real = $result->getReal() + $complex->getReal();
  26. $imaginary = $result->getImaginary() + $complex->getImaginary();
  27. $result = new Complex(
  28. $real,
  29. $imaginary,
  30. ($imaginary == 0.0) ? null : max($result->getSuffix(), $complex->getSuffix())
  31. );
  32. }
  33. return $result;
  34. }
  35. /**
  36. * Divides two or more complex numbers
  37. *
  38. * @param array of string|integer|float|Complex $complexValues The numbers to divide
  39. * @return Complex
  40. */
  41. public static function divideby(...$complexValues): Complex
  42. {
  43. if (count($complexValues) < 2) {
  44. throw new \Exception('This function requires at least 2 arguments');
  45. }
  46. $base = array_shift($complexValues);
  47. $result = clone Complex::validateComplexArgument($base);
  48. foreach ($complexValues as $complex) {
  49. $complex = Complex::validateComplexArgument($complex);
  50. if ($result->isComplex() && $complex->isComplex() &&
  51. $result->getSuffix() !== $complex->getSuffix()) {
  52. throw new Exception('Suffix Mismatch');
  53. }
  54. if ($complex->getReal() == 0.0 && $complex->getImaginary() == 0.0) {
  55. throw new InvalidArgumentException('Division by zero');
  56. }
  57. $delta1 = ($result->getReal() * $complex->getReal()) +
  58. ($result->getImaginary() * $complex->getImaginary());
  59. $delta2 = ($result->getImaginary() * $complex->getReal()) -
  60. ($result->getReal() * $complex->getImaginary());
  61. $delta3 = ($complex->getReal() * $complex->getReal()) +
  62. ($complex->getImaginary() * $complex->getImaginary());
  63. $real = $delta1 / $delta3;
  64. $imaginary = $delta2 / $delta3;
  65. $result = new Complex(
  66. $real,
  67. $imaginary,
  68. ($imaginary == 0.0) ? null : max($result->getSuffix(), $complex->getSuffix())
  69. );
  70. }
  71. return $result;
  72. }
  73. /**
  74. * Divides two or more complex numbers
  75. *
  76. * @param array of string|integer|float|Complex $complexValues The numbers to divide
  77. * @return Complex
  78. */
  79. public static function divideinto(...$complexValues): Complex
  80. {
  81. if (count($complexValues) < 2) {
  82. throw new \Exception('This function requires at least 2 arguments');
  83. }
  84. $base = array_shift($complexValues);
  85. $result = clone Complex::validateComplexArgument($base);
  86. foreach ($complexValues as $complex) {
  87. $complex = Complex::validateComplexArgument($complex);
  88. if ($result->isComplex() && $complex->isComplex() &&
  89. $result->getSuffix() !== $complex->getSuffix()) {
  90. throw new Exception('Suffix Mismatch');
  91. }
  92. if ($result->getReal() == 0.0 && $result->getImaginary() == 0.0) {
  93. throw new InvalidArgumentException('Division by zero');
  94. }
  95. $delta1 = ($complex->getReal() * $result->getReal()) +
  96. ($complex->getImaginary() * $result->getImaginary());
  97. $delta2 = ($complex->getImaginary() * $result->getReal()) -
  98. ($complex->getReal() * $result->getImaginary());
  99. $delta3 = ($result->getReal() * $result->getReal()) +
  100. ($result->getImaginary() * $result->getImaginary());
  101. $real = $delta1 / $delta3;
  102. $imaginary = $delta2 / $delta3;
  103. $result = new Complex(
  104. $real,
  105. $imaginary,
  106. ($imaginary == 0.0) ? null : max($result->getSuffix(), $complex->getSuffix())
  107. );
  108. }
  109. return $result;
  110. }
  111. /**
  112. * Multiplies two or more complex numbers
  113. *
  114. * @param array of string|integer|float|Complex $complexValues The numbers to multiply
  115. * @return Complex
  116. */
  117. public static function multiply(...$complexValues): Complex
  118. {
  119. if (count($complexValues) < 2) {
  120. throw new \Exception('This function requires at least 2 arguments');
  121. }
  122. $base = array_shift($complexValues);
  123. $result = clone Complex::validateComplexArgument($base);
  124. foreach ($complexValues as $complex) {
  125. $complex = Complex::validateComplexArgument($complex);
  126. if ($result->isComplex() && $complex->isComplex() &&
  127. $result->getSuffix() !== $complex->getSuffix()) {
  128. throw new Exception('Suffix Mismatch');
  129. }
  130. $real = ($result->getReal() * $complex->getReal()) -
  131. ($result->getImaginary() * $complex->getImaginary());
  132. $imaginary = ($result->getReal() * $complex->getImaginary()) +
  133. ($result->getImaginary() * $complex->getReal());
  134. $result = new Complex(
  135. $real,
  136. $imaginary,
  137. ($imaginary == 0.0) ? null : max($result->getSuffix(), $complex->getSuffix())
  138. );
  139. }
  140. return $result;
  141. }
  142. /**
  143. * Subtracts two or more complex numbers
  144. *
  145. * @param array of string|integer|float|Complex $complexValues The numbers to subtract
  146. * @return Complex
  147. */
  148. public static function subtract(...$complexValues): Complex
  149. {
  150. if (count($complexValues) < 2) {
  151. throw new \Exception('This function requires at least 2 arguments');
  152. }
  153. $base = array_shift($complexValues);
  154. $result = clone Complex::validateComplexArgument($base);
  155. foreach ($complexValues as $complex) {
  156. $complex = Complex::validateComplexArgument($complex);
  157. if ($result->isComplex() && $complex->isComplex() &&
  158. $result->getSuffix() !== $complex->getSuffix()) {
  159. throw new Exception('Suffix Mismatch');
  160. }
  161. $real = $result->getReal() - $complex->getReal();
  162. $imaginary = $result->getImaginary() - $complex->getImaginary();
  163. $result = new Complex(
  164. $real,
  165. $imaginary,
  166. ($imaginary == 0.0) ? null : max($result->getSuffix(), $complex->getSuffix())
  167. );
  168. }
  169. return $result;
  170. }
  171. }