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<?php |
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|
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namespace Matrix\Operators; |
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|
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use \Matrix\Matrix; |
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use \Matrix\Functions; |
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use Matrix\Exception; |
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|
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class Division extends Multiplication |
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{ |
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/** |
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* Execute the division |
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* |
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* @param mixed $value The matrix or numeric value to divide the current base value by |
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* @throws Exception If the provided argument is not appropriate for the operation |
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* @return $this The operation object, allowing multiple divisions to be chained |
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**/ |
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public function execute($value) |
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{ |
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if (is_array($value)) { |
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$value = new Matrix($value); |
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} |
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|
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if (is_object($value) && ($value instanceof Matrix)) { |
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try { |
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$value = Functions::inverse($value); |
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} catch (Exception $e) { |
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throw new Exception('Division can only be calculated using a matrix with a non-zero determinant'); |
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} |
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|
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return $this->multiplyMatrix($value); |
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} elseif (is_numeric($value)) { |
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return $this->multiplyScalar(1 / $value); |
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} |
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|
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throw new Exception('Invalid argument for division'); |
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} |
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} |
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|
