What are the best practices for handling complex mathematical calculations and rendering tasks in PHP, especially for projects involving 3D graphics?

Complex mathematical calculations and rendering tasks in PHP, especially for projects involving 3D graphics, can be efficiently handled by utilizing external libraries such as MathPHP for mathematical operations and libraries like Three.js for 3D rendering. These libraries provide optimized functions and methods specifically designed for handling complex mathematical calculations and rendering tasks, making them ideal choices for such projects.

// Example of using MathPHP library for complex mathematical calculations
require_once 'vendor/autoload.php';

use MathPHP\LinearAlgebra\Matrix;
use MathPHP\LinearAlgebra\Vector;

// Perform complex mathematical calculations using MathPHP library
$matrix = Matrix::identity(3);
$vector = new Vector([1, 2, 3]);
$result = $matrix->multiply($vector);

echo $result;
```

```php
// Example of using Three.js library for 3D rendering tasks
<!DOCTYPE html>
<html>
<head>
    <title>3D Graphics Rendering</title>
    <script src="https://cdn.jsdelivr.net/npm/three@0.128.0/build/three.min.js"></script>
</head>
<body>
    <script>
        // Initialize Three.js scene
        var scene = new THREE.Scene();
        var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
        var renderer = new THREE.WebGLRenderer();
        renderer.setSize(window.innerWidth, window.innerHeight);
        document.body.appendChild(renderer.domElement);

        // Create 3D object
        var geometry = new THREE.BoxGeometry();
        var material = new THREE.MeshBasicMaterial({ color: 0x00ff00 });
        var cube = new THREE.Mesh(geometry, material);
        scene.add(cube);

        // Render the scene
        function animate() {
            requestAnimationFrame(animate);
            cube.rotation.x += 0.01;
            cube.rotation.y += 0.01;
            renderer.render(scene, camera);
        }
        animate();
    </script>
</body>
</html>