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<?php /** * * Function code for the complex addition operation * * @copyright Copyright (c) 2013-2018 Mark Baker (https://github.com/MarkBaker/PHPComplex) * @license https://opensource.org/licenses/MIT MIT */ namespace Complex; /** * Adds two or more complex numbers * * @param array of string|integer|float|Complex $complexValues The numbers to add * @return Complex */ function add(...$complexValues) { if (count($complexValues) < 2) { throw new \Exception('This function requires at least 2 arguments'); } $base = array_shift($complexValues); $result = clone Complex::validateComplexArgument($base); foreach ($complexValues as $complex) { $complex = Complex::validateComplexArgument($complex); if ($result->isComplex() && $complex->isComplex() && $result->getSuffix() !== $complex->getSuffix()) { throw new Exception('Suffix Mismatch'); } $real = $result->getReal() + $complex->getReal(); $imaginary = $result->getImaginary() + $complex->getImaginary(); $result = new Complex( $real, $imaginary, ($imaginary == 0.0) ? null : max($result->getSuffix(), $complex->getSuffix()) ); } return $result; }