Litipk\BigNumbers\Decimal::arccot PHP Méthode

    public function arccot($scale = null)
    {
        $scale = $scale === null ? 32 : $scale;
        $piOverTwo = DecimalConstants::pi()->div(Decimal::fromInteger(2), $scale + 2);
        if ($this->round($scale)->isZero()) {
            return $piOverTwo->round($scale);
        }
        $piOverFour = DecimalConstants::pi()->div(Decimal::fromInteger(4), $scale + 2);
        if ($this->round($scale)->equals(DecimalConstants::one())) {
            return $piOverFour->round($scale);
        }
        if ($this->round($scale)->equals(DecimalConstants::negativeOne())) {
            return DecimalConstants::negativeOne()->mul($piOverFour, $scale + 2)->round($scale);
        }
        return $piOverTwo->sub(self::simplePowerSerie($this, DecimalConstants::zero(), $scale + 2))->round($scale);
    }