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user43255

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6 Questions

views newest activity votes
4
12
votes
6
answers
604
views

How to solve this recurrence relation? $f_n = 3f_{n-1} + 12(-1)^n$

linear-algebra recurrence-relations recursive-algorithms
oct 2 at 20:50 Max 250
 
8
votes
5
answers
233
views

How can I compute the sum of $ {m\over\gcd(m,n)}$?

number-theory elementary-number-theory summation
oct 11 at 13:32 Thomas Andrews 29.9k
1
7
votes
1
answer
425
views

What would be a good method for finding the submatrix with the largest sum?

linear-algebra algorithms numerical-linear-algebra
may 5 at 11:02 Community♦ 1
 
1
vote
1
answer
118
views

Derive a General formula for each term of this periodic sequence?

sequences-and-series recursive-algorithms
oct 7 at 12:07 Gerry Myerson 86k
 
1
vote
1
answer
152
views

Can you determine a formula for this problem?

linear-algebra probability combinatorics number-theory elementary-number-theory
oct 2 at 19:25 user43255 152
 
1
vote
2
answers
118
views

What is the fastest algorithm to check if a number has only 3 divisors?

linear-algebra algorithms prime-numbers
oct 1 at 16:38 Charles 8,860
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