echo "Converting to a unit vector\n";
$v->normalize();
echo $v->toString() . "\n";
echo "Length after normalizing: " . $v->length() . "\n";
echo "Reversing vector\n";
$v->reverse();
echo $v->toString() . "\n";
echo "==\nVector from tuple\n";
$w = new Math_Vector($t);
echo "Cartesian distance(v,w) = " . $v->distance($w) . "\n";
echo "Manhattan distance(v,w) = " . $v->distance($w, 'manhattan') . "\n";
echo "Chessboard distance(v,w) = " . $v->distance($w, 'chessboard') . "\n";
echo "Vector v: " . $v->toString() . "\n";
echo "Vector w: " . $w->toString() . "\n";
echo "==\nVector from another vector\n";
$z = new Math_Vector(new Math_Vector(range(2, 5)));
echo $z->toString() . "\n";
echo "==\nVector3 vector\n";
$x = new Math_Vector3(new Math_Tuple(array(1, 0, 1)));
echo $x->toString() . "\n";
echo "==\nVector2 vector\n";
$y = new Math_Vector2(array(1, 3));
echo $y->toString() . "\n";
echo "==\nInvalid vector\n";
$bar = new Math_Vector("foo");
if ($bar->isValid()) {
echo "bar is good\n";
} else {
echo "bar is bad\n";
}
print_r($bar);
<?php
require_once "Math/Vector/Vector.php";
require_once "Math/Vector/Vector2.php";
require_once "Math/Vector/Vector3.php";
require_once "Math/Vector/VectorOp.php";
$v1 = new Math_Vector2(array(1, 2));
$v2 = new Math_Vector2(array(2, 4));
$w1 = new Math_Vector3(array(2, 3, 1));
$w2 = new Math_Vector3(array(1, -1, 0));
$w3 = new Math_Vector3(array(7, 3, 2));
echo date("Y-m-d H:i:s") . "\n";
echo "==\nVector v1: " . $v1->toString() . "\n";
echo "Vector v2: " . $v2->toString() . "\n";
$r = Math_VectorOp::add($v1, $v2);
echo "v1 + v2: " . $r->toString() . "\n";
$r = Math_VectorOp::substract($v1, $v2);
echo "v1 - v2: " . $r->toString() . "\n";
$r = Math_VectorOp::multiply($v1, $v2);
echo "v1 * v2: " . $r->toString() . "\n";
$r = Math_VectorOp::divide($v1, $v2);
echo "v1 / v2: " . $r->toString() . "\n";
echo "==\nVector w1: " . $w1->toString() . "\n";
echo "Vector w2: " . $w2->toString() . "\n";
echo "Vector w3: " . $w3->toString() . "\n";
$r = Math_VectorOp::scale(2.0, $w1);
echo " 2.0 * w1 = " . $r->toString() . "\n";
$r = Math_VectorOp::dotProduct($w1, $w2);
echo "w1 . w2 = {$r}\n";
$r = Math_VectorOp::crossProduct($w2, $w3);
echo "w2 x w3 = " . $r->toString() . "\n";
