MathPHP\Probability\Distribution\Table\StandardNormal::getZScoreProbability PHP Метод

    public static function getZScoreProbability(float $Z) : float
    {
        if (!preg_match('/^ (\\-? \\d [.] \\d) (\\d) $/x', sprintf('%1.2f', $Z), $matches)) {
            throw new Exception\BadParameterException("Z does not match format X.XX: {$Z}");
        }
        list($z, $＋0．0x) = [$matches[1], $matches[2]];
        return self::Z_SCORES[$z][$＋0．0x];
    }