Documentation/How Tos/Calc: COMBIN function
From Apache OpenOffice Wiki
COMBIN
Returns the number of combinations of a subset of items.
Syntax:
COMBIN(n; k)
- n is the number of items in the set.
- k is the number of items to choose from the set.
- COMBIN returns the number of ways to choose these items. For example if there are 3 items A, B and C in a set, you can choose 2 items in 3 different ways, namely AB, AC and BC.
- COMBIN implements the formula:
- n!/(k!(n-k)!)
Example:
COMBIN(3,2)
- returns 3.