Uname: Linux peekpos.com 6.8.0-1060-aws #63~22.04.1-Ubuntu SMP Tue Jun 30 02:32:53 UTC 2026 x86_64
Software: Apache
PHP version: 8.3.25 [ PHP INFO ] PHP os: Linux
Server Ip: 47.130.192.226
Your Ip: 10.1.31.86
User: www (1001) | Group: www (1001)
Safe Mode: OFF
Disable Function:
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name : test.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;
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