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<?php |
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|
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/** |
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* |
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* Function code for the matrix subtraction operation |
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* |
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* @copyright Copyright (c) 2018 Mark Baker (https://github.com/MarkBaker/PHPMatrix) |
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* @license https://opensource.org/licenses/MIT MIT |
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*/ |
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|
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namespace Matrix; |
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|
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use Matrix\Operators\Subtraction; |
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|
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/** |
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* Subtracts two or more matrices |
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* |
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* @param array<int, mixed> $matrixValues The matrices to subtract |
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* @return Matrix |
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* @throws Exception |
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*/ |
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function subtract(...$matrixValues) |
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{ |
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if (count($matrixValues) < 2) { |
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throw new Exception('Subtraction operation requires at least 2 arguments'); |
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} |
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|
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$matrix = array_shift($matrixValues); |
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|
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if (is_array($matrix)) { |
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$matrix = new Matrix($matrix); |
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} |
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if (!$matrix instanceof Matrix) { |
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throw new Exception('Subtraction arguments must be Matrix or array'); |
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} |
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|
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$result = new Subtraction($matrix); |
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|
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foreach ($matrixValues as $matrix) { |
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$result->execute($matrix); |
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} |
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|
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return $result->result(); |
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} |
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|
