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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\Exception; |
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|
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abstract class Operator |
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{ |
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/** |
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* Stored internally as a 2-dimension array of values |
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* |
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* @property mixed[][] $matrix |
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**/ |
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protected $matrix; |
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|
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/** |
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* Number of rows in the matrix |
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* |
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* @property integer $rows |
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**/ |
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protected $rows; |
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|
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/** |
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* Number of columns in the matrix |
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* |
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* @property integer $columns |
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**/ |
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protected $columns; |
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|
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/** |
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* Create an new handler object for the operation |
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* |
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* @param Matrix $matrix The base Matrix object on which the operation will be performed |
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*/ |
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public function __construct(Matrix $matrix) |
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{ |
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$this->rows = $matrix->rows; |
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$this->columns = $matrix->columns; |
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$this->matrix = $matrix->toArray(); |
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} |
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|
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/** |
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* Compare the dimensions of the matrices being operated on to see if they are valid for addition/subtraction |
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* |
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* @param Matrix $matrix The second Matrix object on which the operation will be performed |
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* @throws Exception |
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*/ |
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protected function validateMatchingDimensions(Matrix $matrix) |
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{ |
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if (($this->rows != $matrix->rows) || ($this->columns != $matrix->columns)) { |
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throw new Exception('Matrices have mismatched dimensions'); |
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} |
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} |
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|
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/** |
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* Compare the dimensions of the matrices being operated on to see if they are valid for multiplication/division |
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* |
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* @param Matrix $matrix The second Matrix object on which the operation will be performed |
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* @throws Exception |
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*/ |
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protected function validateReflectingDimensions(Matrix $matrix) |
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{ |
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if ($this->columns != $matrix->rows) { |
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throw new Exception('Matrices have mismatched dimensions'); |
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} |
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} |
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|
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/** |
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* Return the result of the operation |
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* |
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* @return Matrix |
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*/ |
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public function result() |
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{ |
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return new Matrix($this->matrix); |
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} |
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} |
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|