Differences Between: [Versions 310 and 311] [Versions 39 and 311]
1 <?php 2 3 /** 4 * 5 * Function code for the matrix direct sum operation 6 * 7 * @copyright Copyright (c) 2018 Mark Baker (https://github.com/MarkBaker/PHPMatrix) 8 * @license https://opensource.org/licenses/MIT MIT 9 */ 10 11 namespace Matrix; 12 13 use Matrix\Operators\DirectSum; 14 15 /** 16 * Adds two or more matrices 17 * 18 * @param array<int, mixed> $matrixValues The matrices to add 19 * @return Matrix 20 * @throws Exception 21 */ 22 function directsum(...$matrixValues): Matrix 23 { 24 if (count($matrixValues) < 2) { 25 throw new Exception('DirectSum operation requires at least 2 arguments'); 26 } 27 28 $matrix = array_shift($matrixValues); 29 30 if (is_array($matrix)) { 31 $matrix = new Matrix($matrix); 32 } 33 if (!$matrix instanceof Matrix) { 34 throw new Exception('DirectSum arguments must be Matrix or array'); 35 } 36 37 $result = new DirectSum($matrix); 38 39 foreach ($matrixValues as $matrix) { 40 $result->execute($matrix); 41 } 42 43 return $result->result(); 44 }
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