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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/…
Jan
13
revised Compute $f^{(22)}(0)$ where $f(x)= \sin(x)/x$ if $x\neq0$ and $1$ if $x=0.$
deleted 5 characters in body
Jan
13
revised For a continuous function $f$ show $\exists c\in (0,1)$ s.t $f(c)=3c^2$
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Jan
13
revised Limit of a sequence of a function
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Jan
13
revised Limit of a sequence of a function
added 9 characters in body
Jan
13
answered Limit of a sequence of a function
Jan
12
comment Proving the inequality $e^{\sin(\sqrt{2}/{7})}<11/9$ without calculator
$11/9 - e^{\sin (\sqrt{2}/7)} = 0.00001435084425...$ So if you came up with it yourself, and need a proof, don't get your hopes up. While there might be a nice proof, it is unlikely to be found...
Jan
12
comment Proving the inequality $e^{\sin(\sqrt{2}/{7})}<11/9$ without calculator
What is the source of this problem? Is it some contest problem or were you just playing around with a calculator?
Jan
12
revised Prove $\mathbb{P}( k < l/2 ) \geq \frac{l}{2} \times \mathbb{P}( k = l/4 ) $ for binomial variable $k$
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Jan
12
revised How to show $\,f(x)=3e^{2x} -10x -7x^2\,$ has a minimum on $\,[0, 1]$
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Jan
12
revised Another Division Algorithm Question.
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Jan
12
comment Algebraic expansion with complex variable…
abstract-algebra is a different subject. Please read the blurbs of the tags before using them.
Jan
12
revised Algebraic expansion with complex variable…
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