public function argument()
    {
        if ($this->original) {
            return $this->original->theta;
        }

        return atan2($this->float_i, $this->float_r);
    }
public function argument()
    {
        if ($this->original) {
            return $this->original->theta;
        }

        return atan2($this->float_i, $this->float_r);
    }
public function argument ( ) { if ( $ this -> original ) { return $ this -> original -> theta ; } return atan2 ( $ this -> float_i , $ this -> float_r ) ; }
Computes and returns the argument.

@access public
@return float
Computes and returns the argument .