/**
* Adds polynom to current polynom
*
* @param ezcGraphPolynom $polynom Polynom to add
* @return ezcGraphPolynom Modified polynom
*/
public function add(ezcGraphPolynom $polynom)
{
$order = max($this->getOrder(), $polynom->getOrder());
for ($i = 0; $i <= $order; ++$i) {
$this->set($i, $this->get($i) + $polynom->get($i));
}
return $this;
}
public function testPolynomGetOrder()
{
$polynom = new ezcGraphPolynom(array(2 => 0.5, 1 => 3, 0 => -4.5));
$this->assertEquals(2, $polynom->getOrder());
}