Moontoast\Math\BigNumberTest::testSqrt PHP Метод

    public function testSqrt()
    {
        $bn1 = new BigNumber(16);
        $bn2 = new BigNumber(17);
        $bn3 = clone $bn2;
        $this->assertSame($bn1, $bn1->sqrt());
        $this->assertSame('4', $bn1->getValue());
        $this->assertSame('4', $bn2->sqrt()->getValue());
        $bn3->setScale(8);
        $this->assertSame('4.12310562', $bn3->sqrt()->getValue());
    }