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Thread: how to produce combination of 4 letter character?

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  1. Apr 28th, 2011, 01:41 PM #5
    jmsrickland
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    Re: how to produce combination of 4 letter character?

    My understanding is that for all possibile n combinations it is n! which is what you are doing.
    But that only gives you all combinations for that number of letters. However, he wants all 4 letter combinations out of all 26 letters of the alphabet without any repeats.

    Now my understanding of that request is

    26! / (26-4)! = 26! / 22! = 4.03291461 × (1026 to the 26th power) divided by 1.12400073 × (1021 to the 20th power) = I don't have the slightest clue

    Of course, my understanding may be questionable
    Last edited by jmsrickland; Apr 28th, 2011 at 01:50 PM.


    Anything I post is an example only and is not intended to be the only solution, the total solution nor the final solution to your request nor do I claim that it is. If you find it useful then it is entirely up to you to make whatever changes necessary you feel are adequate for your purposes.
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