Difference between revisions of "Documentation/How Tos/Calc: COMBIN function"

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== COMBIN ==
 
== COMBIN ==
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: returns <tt>'''3'''</tt>.
 
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* [[Documentation/How_Tos/Calc: COMBINA function|COMBINA]]
 
* [[Documentation/How_Tos/Calc: COMBINA function|COMBINA]]
 
* [[Documentation/How_Tos/Calc: PERMUT function|PERMUT]]
 
* [[Documentation/How_Tos/Calc: PERMUT function|PERMUT]]

Latest revision as of 15:07, 31 January 2024

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.


See Also
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