What Is the General Formula for Calculating Combinations?

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Whats a general formula for figuring out combos try showing me with variables i learn faster that way. And thank you for you help
 
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Nvm mind i fond something on the internet
the answer was simple

the number of digits you can put in which will be variable "a"
to the power of number of digits there which will be variable "b"

a = 2
b = 4 (this is really 3, but most likly your going to be able to input the number 0 in there)

formula a^b = 16 possible combinations
 
What you've found is a formula for a specific type of selection. There are others.
 
What is a Combonation ? :-)
 
huh?

cantormath]What is a Combonation ? :smile:

"A Mathematician is a machine for turning coffee into theorems." -Erdös, Paul Nov. 1992
 

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