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<?php
$v = new Vector();
$v->x = 1.0;
$v->y = 2.0;
$v->z = 3.0;
$w = new Vector();
$w->x = 10.0;
$w->y = 11.0;
$w->z = 12.0;
echo "I just created the following vector\n";
vector_print($v);
vector_print($w);
echo "\nNow I'm going to compute the dot product\n";
$d = dot_product($v, $w);
echo "dot product = $d (should be 68)\n";
echo "\nNow I'm going to add the vectors together\n";
$r = new Vector();
vector_add($v, $w, $r);
vector_print($r);
echo "The value should be (11,13,15)\n";
echo "\nNow I'm going to clean up the return result\n";
unset($r);
echo "Good\n";
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