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<?php
declare(strict_types=1);
namespace Phpml\Math\Distance;
/**
* Class Euclidean
*
* L^2 Metric.
*/
class Euclidean extends Distance
{
* Euclidean constructor.
public function __construct()
parent::__construct(2.0);
}
* Square of Euclidean distance
* @throws \Phpml\Exception\InvalidArgumentException
public function sqDistance(array $a, array $b): float
return $this->distance($a, $b) ** 2;
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