
Factorials 
The product of a given positive integer n multiplied by all the lesser positive integers from 1 to 
<Example>
O per ation | D isplay  | 
7  | DEG  | 
  | |
  | c.f  | 
  | n! = 1 x 2 x 3 x …xn | 
A P P L IC AT IO N S:
Used in statistics and mathematics. In statistics, this function is used in calculations involving combinations and permutations.
15