public function exp($value)
    {
        $value = Cast::Float($value);

        if ($this->value === null) {
            return new FloatType($this->value);
        }

        return new FloatType(pow($this->value, $value));
    }
public function exp($value)
    {
        $value = Cast::Float($value);

        if ($this->value === null) {
            return new FloatType($this->value);
        }

        return new FloatType(pow($this->value, $value));
    }
public function exp ( $ value ) { $ value = Cast :: Float ( $ value ) ; if ( $ this -> value === null ) { return new FloatType ( $ this -> value ) ; } return new FloatType ( pow ( $ this -> value , $ value ) ) ; }
Exponentiation. Product is always FloatType.

@param  mixed $value
@return FloatType
Exponentiation . Product is always FloatType .