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Dr.Peterson replied to the thread Permutations in dictionary order.Yes; but the comment you refer to is about an answer ("in that post") that treated them as R1 and R2: So it isn't yet answering the... -
Mmrtwhs replied to the thread Permutations in dictionary order.Now I'm really confused. I looked at REGULAR very carefully. Does one of the R's have red hair? Is one of the R's taller? Just how...
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Dr.Peterson replied to the thread Permutations in dictionary order.I hope it's obvious that I meant to say, "Have you tried treating R and R as being indistinguishable?" The error, if we call it that...
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Dr.Peterson replied to the thread Permutations in dictionary order.Clearly this is not correct. Have you tried treating R and R as being different? It isn't a lot harder. I notice that there are online...
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blamocur replied to the thread Permutations in dictionary order.I believe in that post two R's are considered different (R1 and R2), so there are actually 5040 ways. -
Mmrtwhs replied to the thread Permutations in dictionary order.I'm confused. How are you defining rank? There are 2520 ways to arrange REGULAR. So how can one of them have rank 3045?
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Ggeorgef replied to the thread Robot Exit Angle Between Two Objects.To find the exit angle, you can equate the perpendicular (lateral) distances from the robot path to each object vector. For an object...
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WParent trying to help my high schooler with Alg 1: please help with a step by step of HOW to do the problem. I am actually NOT asking...
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WWren replied to the thread vertical motion.Parent trying to help my high schooler with Alg 1: please help with a step by step of HOW to do the problem. I am actually NOT asking...
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MMaths Pro replied to the thread Permutations in dictionary order.A in first place 6!, E in first place another 6!, likewise for G and L in first place total 2880. Now R1A fixed : 5!=120 R1EA : 4! = 24...
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MMaths Pro replied to the thread Permutations in dictionary order.Okay I assume REGULAR could be arranged as AEGLR1R2U in dictionary order. Assuming R1 and R2 separate alphabets, I think REGULAR rank...
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blamocur replied to the thread Permutations in dictionary order.Do you know how to figure out the rank of a "regular" permutation, i.e. the one without repeated elements? E.g. what is the order of...
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MMaths Pro replied to the thread Permutations in dictionary order.I guess you are almost there. Must be a minor mistake of adding 1 to get the rank. I tried with prototype MUSIC. I got 72nd rank...
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Mmrtwhs replied to the thread Permutations in dictionary order.I tried to follow the same strategy that you used. I'm not sure but I think: Starting with: A there are \dfrac{6!}{2!}=360 ways D there...
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GGabbyD3 replied to the thread Math Practice Problems.Searching can definitely be overwhelming since there are so many sites out there! I’ve always found Dad's Worksheets to be super...