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 Mar 6 answered On differentiable functions on real line satisfying $f'(x)\ge f(x)^2 , \forall x>0$ Mar 6 answered Exponential conjugate equals to reciprocal? Mar 4 comment Prove that $\left|\frac{e^{-ht}-1}{h}\right|\le t$ for $h>0$ +1, very clever use of MVT Mar 4 revised Prove that $\left|\frac{e^{-ht}-1}{h}\right|\le t$ for $h>0$ added 2 characters in body Mar 4 revised A Nonhomogenous Poisson Process Question - Harry's Stressful Life added 109 characters in body; edited tags Mar 4 answered Confidence intervals without the knowing the distribution of the data Mar 2 awarded Nice Answer Mar 1 comment How do I represent this in terms of m and x i think you just proved that $E$ is independent of $x$... Mar 1 revised How do I represent this in terms of m and x edited tags Mar 1 comment Simply this formula what is $\sum [\cdot]$ can you please rewrite your formulae to make them readable? Mar 1 revised Simply this formula added 8 characters in body Mar 1 answered About Euler's formula $e^{ix}=\cos x+i\sin x$ Mar 1 revised About Euler's formula $e^{ix}=\cos x+i\sin x$ added 18 characters in body; edited title Feb 29 revised What does strength refer to in mathematics? edited body Feb 29 revised What does strength refer to in mathematics? added 137 characters in body Feb 29 answered What does strength refer to in mathematics? Feb 23 comment Partition of number's squares The first $n$ I can see this is possible for is $n=8$, and the greedy algorithm from the largest number produces the partitioning. Not sure this will or will not work for $n=1000$ Feb 23 comment Partition of number's squares Why do you think this is necessarily possible? Feb 23 revised Partition of number's squares added 7 characters in body; edited tags Feb 23 comment The function $f (x) = f \left (\frac x2 \right ) + f \left (\frac x2 + \frac 12\right)$ the only thing i can see is that $$f(x+1)-f(x) = f(x/2+1)-f(x/2)$$ and $f(1/2)=0$