34 lines
		
	
	
		
			486 B
		
	
	
	
		
			PHP
		
	
	
		
		
			
		
	
	
			34 lines
		
	
	
		
			486 B
		
	
	
	
		
			PHP
		
	
	
|  | <?php | ||
|  | 
 | ||
|  | use Matrix\Matrix; | ||
|  | use Matrix\Decomposition\QR; | ||
|  | 
 | ||
|  | include __DIR__ . '/../vendor/autoload.php'; | ||
|  | 
 | ||
|  | $grid = [ | ||
|  |     [0, 1], | ||
|  |     [-1, 0], | ||
|  | ]; | ||
|  | 
 | ||
|  | $targetGrid = [ | ||
|  |     [-1], | ||
|  |     [2], | ||
|  | ]; | ||
|  | 
 | ||
|  | $matrix = new Matrix($grid); | ||
|  | $target = new Matrix($targetGrid); | ||
|  | 
 | ||
|  | $decomposition = new QR($matrix); | ||
|  | 
 | ||
|  | $X = $decomposition->solve($target); | ||
|  | 
 | ||
|  | echo 'X', PHP_EOL; | ||
|  | var_export($X->toArray()); | ||
|  | echo PHP_EOL; | ||
|  | 
 | ||
|  | $resolve = $matrix->multiply($X); | ||
|  | 
 | ||
|  | echo 'Resolve', PHP_EOL; | ||
|  | var_export($resolve->toArray()); | ||
|  | echo PHP_EOL; |