public function PHPExcel_Shared_JAMA_LUDecomposition::getL in Loft Data Grids 7.2

Same name and namespace in other branches

1. 6.2 vendor/phpoffice/phpexcel/Classes/PHPExcel/Shared/JAMA/LUDecomposition.php \PHPExcel_Shared_JAMA_LUDecomposition::getL()

* Get lower triangular factor. * *

Return value

array Lower triangular factor

File

vendor/phpoffice/phpexcel/Classes/PHPExcel/Shared/JAMA/LUDecomposition.php, line 128

Class

PHPExcel_Shared_JAMA_LUDecomposition

@package JAMA

Code

public function getL() {
  for ($i = 0; $i < $this->m; ++$i) {
    for ($j = 0; $j < $this->n; ++$j) {
      if ($i > $j) {
        $L[$i][$j] = $this->LU[$i][$j];
      }
      elseif ($i == $j) {
        $L[$i][$j] = 1.0;
      }
      else {
        $L[$i][$j] = 0.0;
      }
    }
  }
  return new PHPExcel_Shared_JAMA_Matrix($L);
}