/**
* Checks for equality between this complex number and another
* within a given range defined by epsilon.
*
* @param Complex $complex complex number to check this number against.
* @param float $epsilon
* @return bool true if equal within epsilon, false otherwise
*/
public function equals($complex, $epsilon = Numbers::EPSILON)
{
return Basic::numbersEqual($this->real, $complex->real, $epsilon) && Basic::numbersEqual($this->imaginary, $complex->imaginary, $epsilon);
}
