| tuple_deviation | Return the standard deviation of the elements of a tuple. |
| tuple_length | Returns the number of elements of a tuple. |
| tuple_max | Returns the maximal element of a tuple. |
| tuple_mean | Return the mean value of a tuple of numbers. |
| tuple_median | Return the median of the elements of a tuple. |
| tuple_min | Returns the minimal element of a tuple. |
| tuple_sum | Return the sum of all elements of a tuple. |