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Math.SE seems to be going the stackoverflow way. Pity.


Jan
27
revised Number of real roots of $2 \cos\left(\frac{x^2+x}{6}\right)=2^x+2^{-x}$
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Jan
27
revised Show that $n^4+4$ is not a prime number
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Jan
26
comment Remove minimal number of elements
Search the web for sum free subsets.
Jan
26
revised Prove, inequality ,positive numbers
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Jan
25
comment Seperating points in the complex plane
@MarkMcClure: Yeah, I guessed that (smiley and all :)). Just wanted to make you aware of that meta thread, that's all. There are reasons to post an answer instead of a comment, even if you think it is trivial etc. Sorry if my comment sounded like an accusation. It was not.
Jan
25
comment Relationship between increasing integer sequences
btw, using density arguments, the answer is probably yes.
Jan
25
comment Solve recurrence relation merge sort
What do you mean by "solve" exactly? Find out whether $a(n) = \Theta(n \log n)$? Or some exact formula etc?
Jan
25
comment Relationship between increasing integer sequences
Are you trying to prove the converse of Beatty's theorem?
Jan
25
comment Seperating points in the complex plane
@MarkMcClure: Why post an answer as a comment? Post it as an answer. user86418 is doing the right thing: meta.math.stackexchange.com/questions/1559/…
Jan
25
comment Why is this sum wrong?
@Redding: The example I gave you is a good example. But the simplest reason is that the theorems you use to justify taking individual limits only involve finite number of terms, independent of $n$. There are no such theorems when the number of terms is dependent on $n$.
Jan
25
answered Why is this sum wrong?
Jan
24
revised The Diophantine equation $x^2 + 2 = y^3$
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Jan
23
comment Evaluating $\lim_{n\to\infty} e^{-n} \sum\limits_{k=0}^{n} \frac{n^k}{k!}$
[Older question, perhaps merge...] possible duplicate of Partial sums of exponential series
Jan
23
revised Maximal Multiplication of All Possible Summands
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Jan
21
revised Linear Combinations of Fibonacci Numbers (integer coefficients)
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Jan
21
comment Comparing $\pi^{e}$ and $e^{\pi}$
@MurtuzaVadharia: Yes, it is true. Consider $f(x) = e^x -1 -x$. It's derivative is $e^x -1$ which is $\lt 0$ for $x \lt 0$ and $\gt 0$ for $x \gt 0$, so $f$ decreases from $-\infty$ to $0$, and increases from $0$ to $\infty$. Since $f(0) = 0$...
Jan
14
comment Linear Combinations of Fibonacci Numbers (integer coefficients)
@theage: No worries. At least you even bothered to respond to my comments. Some folks don't even care :-) I suggest you wait at least a couple of days before even thinking about accepting. By accepting an answer too soon you cut down on the number of folks who will even see the question.
Jan
14
comment Linear Combinations of Fibonacci Numbers (integer coefficients)
-1: This does not even consider the constraint that the coefficients are integers.
Jan
14
comment Linear Combinations of Fibonacci Numbers (integer coefficients)
<peeve> It is so annoying when someone accepts an answer too quickly, and that too the wrong one. </peeve>
Jan
13
comment Convergence of a sequence given by recursive relation
Related: math.stackexchange.com/questions/10065/…