PHP LL_Matrix::columns Examples

Example #1

File: matrix.php Project: vinamilvinamil/Learning-Library-for-PHP

 public function naiveMultiply(LL_Matrix $matrix)
 {
     if (is_array($matrix)) {
         $matrix = new LL_Matrix($matrix);
     }
     if ($this->columns() != $matrix->rows()) {
         // impossible operation.
         return false;
     }
     $result = array();
     for ($a = 0; $a < $this->rows(); $a++) {
         for ($b = 0; $b < $matrix->columns(); $b++) {
             $result[$a][$b] = 0;
             for ($i = 0; $i < $this->columns(); $i++) {
                 $result[$a][$b] += $this->get($a, $i) * $matrix->get($i, $b);
             }
         }
     }
     return new LL_Matrix($result);
 }