# Combination formula calculator

Find out how many different ways to choose items. For an in-depth explanation of the formulas please visit Combinations and Permutations. The old Flash version is here.

For an in-depth explanation please visit Combinations combination formula calculator Permutations. The "has" rule which says that certain items must be included for the entry to be included. The "no" rule which means that some items from the list must not occur together. The word "has" followed by a space and a number. Then a comma and a list of items separated by commas. Will allow if there is an a and bor a and cor b and cor all three a,b and c.

The word "no" followed by a space and a number. It has rejected any with a and bor a and cor b and cor even all three a,b and c. The word "pattern" followed by a space and a list of items separated by commas. Hide **Combination formula calculator** About Ads. Combinations and Permutations Calculator Find out how many different ways to choose items.

You can now add "Rules" that will reduce the List: The "pattern" rule is used to impose combination formula calculator kind of combination formula calculator to each entry. Example has 1,a,b,c Will allow if there is an aor combination formula calculatoror cor a and bor a and cor b and cor all three a,b and c. In other words, it insists there be an a or b or c in the result. Example has 2,a,b,c Will allow if there is an a and combination formula calculatoror a and cor b and cor all three a,b and c.

In other words, it insists there be at least 2 of a or b or c in the result. Combinations and Permutations Lotteries.

At this point I must assume you are just a combination formula calculator or unsafely blinded by a desire to gamble. Either way, I will no longer be responding, as all actual evidence to support my points has been sufficiently provided.

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