My Math Forum Permutations,variations and combinations

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 March 7th, 2017, 01:56 PM #1 Newbie   Joined: Feb 2017 From: Peja Posts: 5 Thanks: 0 Math Focus: Jack of all trades, master of none, though often better, than master of one. Permutations,variations and combinations First of, we're talking no repetition. So I thought I would just look these up when I get home, but I didn't find anything except finding the number of possible permutations, variations or combinations. I already know that part because of the formulas, but my teacher talks about some order of permutations and finding the n-th permutation. Is there some sort of rule of ordering permutations? For example if we had: $\displaystyle 1 2 3 4 5$ what would be the next permutations and why?
 March 7th, 2017, 03:51 PM #2 Global Moderator   Joined: May 2007 Posts: 6,524 Thanks: 588 There is no general rule for ordering permutations. You can make up your own.
 March 13th, 2017, 01:33 PM #3 Newbie   Joined: Feb 2017 From: Peja Posts: 5 Thanks: 0 Math Focus: Jack of all trades, master of none, though often better, than master of one. Eh, sorry for the late reply, had no internet. So I guess the writers of my textbook made one up and didn't write anything about it? I mean most exercises there are about finding the n-th permutation (or combination) which wouldn't make any sense if there wasn't one defined. Well I'll just cling on to the pattern I found. Thanks for the reply anyway.

### permutation variation combination

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