namespace Tensor;

interface Special
{    
    /**
     * Sum the tensor.
     *
     * @return mixed
     */
    public function sum();

    /**
     * Calculate the product of the tensor.
     *
     * @return mixed
     */
    public function product();

    /**
     * Return the minimum of the tensor.
     *
     * @return mixed
     */
    public function min();

    /**
     * Return the maximum of the tensor.
     *
     * @return mixed
     */
    public function max();

    /**
     * Clip the tensor to be between the given minimum and maximum.
     *
     * @param float min
     * @param float max
     * @return mixed
     */
     public function clip(const float min, const float max);

     /**
      * Clip the tensor to be lower bounded by a given minimum.
      *
      * @param float min
      * @return mixed
      */
     public function clipLower(const float min);
 
     /**
      * Clip the tensor to be upper bounded by a given maximum.
      *
      * @param float max
      * @return mixed
      */
     public function clipUpper(const float max);
}