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Warning: include_once(): Failed opening 'PEAR.php' for inclusion (include_path='c:\php74\includes') in C:\Apache241\htdocs\phpexcel\Classes\PHPExcel\Shared\JAMA\examples\Stats.php on line 22
QR decomposition: 16 random 2x2 matrices

Fatal error: Uncaught Error: Class 'Matrix' not found in C:\Apache241\htdocs\phpexcel\Classes\PHPExcel\Shared\JAMA\examples\benchmark.php:82 Stack trace: #0 C:\Apache241\htdocs\phpexcel\Classes\PHPExcel\Shared\JAMA\examples\benchmark.php(219): Benchmark->runQR(2, 16) #1 {main} thrown in C:\Apache241\htdocs\phpexcel\Classes\PHPExcel\Shared\JAMA\examples\benchmark.php on line 82