CombinationsA with repetition |

Returnes number of combinations with repetition for given objects.

CombinationsA(number_objects; number_chosen_objects)

number_all_objects (n) - number of all objects

number_chosen_objects (k) - number objects in combination

not negative integer number.

- fractional number are converted into integer,

- "number_all_objects" must be greater than "number_chosen_objects".

Formula of this function: *(n+k-1)!/(k!*(n-1)!)*

CombinationsA(10;3) = 220