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**RealCozzy****Member**- Registered: 2012-12-17
- Posts: 2

I have to fill out a 9 player baseball lineup, using only three players.

I have three Player A, three Player B and three Player C.

ie - one lineup might look like AAABBBCCC or AABCABCCB

My question is, what is the math formula for determining how many possible lineups there are.

And secondly, what is an easy way to list all these lineups?

Thanks -D

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 90,791

Hi;

Welcome to the forum.

There are

different lineups. To list them you will need a program.

**In mathematics, you don't understand things. You just get used to them.**

**I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.**

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**RealCozzy****Member**- Registered: 2012-12-17
- Posts: 2

Thanks. Yes, I will need a program. I may work on this. Any tips on the psuedo code?

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 90,791

Hi;

Go here

http://users.telenet.be/vdmoortel/dirk/ … tions.html

and enter aaabbbccc.

Easier than coding a multinomial!

**In mathematics, you don't understand things. You just get used to them.**

**I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.**

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