public function testAddLargeIntegerToADecimalSmallerThanOne()
{
$x = \MyOddWeb\BigNumber("123456789123456789123456789");
$y = \MyOddWeb\BigNumber("0.0000000002");
$z = $y->Add($x)->ToString();
$this->assertSame("123456789123456789123456789.0000000002", $z);
}
public function testSqrtOfZeroPointFive()
{
$x = \MyOddWeb\BigNumber(0.5);
$y = $x->Sqrt(10);
// 0.70710678118654752440084436210485
$z = $y->ToString();
$this->assertSame("0.7071067812", $z);
}
public function testPositiveNumberDividedByNegativeNumber()
{
$x = \MyOddWeb\BigNumber(20);
$z = $x->Div(-2)->ToString();
$this->assertSame("-10", $z);
$x = \MyOddWeb\BigNumber(100);
$z = $x->Div(-100)->ToString();
$this->assertSame("-1", $z);
$x = \MyOddWeb\BigNumber(1000000);
$z = $x->Div(-244.140625)->ToString();
// 4096
$this->assertSame("-4096", $z);
}
public function testNegativePiToDegree()
{
$rad = \MyOddWeb\BigNumber(\MyOddWeb\BigNumber::pi())->ToDegree(10);
$rad->Mul(-1);
$z = $rad->ToString();
$this->assertSame("-180", $z);
}
public function testSubtractSmallNumberToBecomeLargeInteger()
{
$x = \MyOddWeb\BigNumber("123456789123456789123456789123456789.000002");
$y = \MyOddWeb\BigNumber("0.000002");
$z = $x->Sub($y)->ToString();
$this->assertSame("123456789123456789123456789123456789", $z);
}