# Search:

Tag: combinatorics

## Search: Search took 0.00 seconds; generated 37 minute(s) ago.

1. ### Why is the sum of (nCk)*(mCr-k) equal to (m+n)Cr?

• Replies: 11
• Views: 636
Last Post: 09-24-2018 09:11 AM
by Dr.Peterson
2. ### Number of 6 digit natural numbers with even sum of digits

• Replies: 9
• Views: 1,123
Last Post: 03-24-2018 11:21 PM
by Jomo
3. ### How many words (at most 6 letters) formed from a, b, c, d, e, f; Combinatorics

• Replies: 0
• Views: 430
Last Post: 03-07-2018 05:29 PM
by Bélisaire
4. ### Combinations/Permutations Math Problem: 20 people wish to make up a hockey team.

• Replies: 2
• Views: 509
Last Post: 03-06-2018 09:06 AM
by SophieFred316
5. ### Recurrence relation for quaternary strings length n sum divisible by 3

• Replies: 1
• Views: 591
Last Post: 11-04-2017 10:10 AM
by barrick
6. ### Probably simple combinatorics problem

• Replies: 1
• Views: 649
Last Post: 07-10-2017 09:43 AM
by tkhunny
7. ### Probability of one player having more of a certain suite, with different hand sizes

• Replies: 2
• Views: 821
Last Post: 06-30-2017 09:32 AM
by mattthr
8. ### Fair dice roll: What is the smallest value of n, so that the probability...?

• Replies: 1
• Views: 1,071
Last Post: 05-17-2017 10:30 AM
by Subhotosh Khan
9. ### Combinatorics at GCSE and A-level: "For which values of positive integer k is it..."

• Replies: 0
• Views: 955
Last Post: 11-05-2016 01:56 PM
by Michael G.
10. ### Preorder Traversal: find binary tree w/ char. seq. 110100110100100

• Replies: 1
• Views: 1,234
Last Post: 10-23-2016 01:34 PM
by Subhotosh Khan
11. ### Climbing n stairs 1 or 2 at a time; count ways to climb stairs.

• Replies: 1
• Views: 1,664
Last Post: 06-04-2016 10:09 AM
by stapel
12. ### combinatorics question

• Replies: 1
• Views: 986
Last Post: 03-13-2016 06:37 PM
by Cartesius24
13. ### Square sum

• Replies: 2
• Views: 1,217
Last Post: 11-16-2015 12:33 AM
by vs140580
14. ### Combinatorics, sets

• Replies: 5
• Views: 2,950
Last Post: 03-11-2015 07:38 PM
by stapel
15. ### Binomial distribution with dependent trials?

• Replies: 4
• Views: 3,015
Last Post: 09-17-2014 03:21 PM
by Reynolds
16. ### Competition scheduling problem

• Replies: 0
• Views: 1,048
Last Post: 09-08-2014 05:56 PM
by Coach Tim
17. ### Ordered and Unordered partitions

• Replies: 5
• Views: 5,809
Last Post: 09-11-2014 01:24 AM
by mathdaemon
18. ### Combinatorics problems

• Replies: 0
• Views: 1,299
Last Post: 02-03-2014 03:52 AM
by mathdaemon
19. ### Combinatorics Questions:

• Replies: 11
• Views: 6,367
Last Post: 05-16-2013 07:16 PM
by DrPhil
20. ### Simplifying Combinatorics Question

• Replies: 3
• Views: 1,122
Last Post: 05-07-2013 03:00 PM
by Subhotosh Khan

Forum:
Calculus

21. ### Sum of first m terms of a combinatorial number

• Replies: 0
• Views: 1,146
Last Post: 01-07-2013 10:51 PM
by Quirinus Quirrell
Results 1 to 21 of 21