# Manuals/calci/COMBINATIONS

COMBINATIONS (Array,HowMany)

• is the set of numbers.
• is the number of choices.

## Description

• This function shows the combination of the given numbers.
• A combination is a selection of all or part of a set of objects, without regard to the order in which objects are selected.
• In , is the set of numbers and is the described number of choice.
• The number of ways of picking k unordered outcomes from n possibilities.
• Also known as the binomial coefficient or choice number and read "n choose k" .
• .
• Here COMBINATIONS shows the choices of the selected objects.

## Examples

1.COMBINATIONS([3,8,12],2)

 3 8 3 12 8 12

2.COMBINATIONS([10,18,300,23,192],3)

 10 18 300 10 18 23 10 18 192 10 300 23 10 300 192 10 23 192 18 300 23 18 300 192 18 23 192 300 23 192

Combinations