Aryabhata
Reputation
56,793
397/400 score
 Apr17 revised Compute $\int_{0}^{\infty}\frac{x \log(x)}{(1+x^2)^2}dx$ edited tags Apr17 revised Proving that $\lim_{n\rightarrow\infty}n(a_{n+1}-a_{n})=1 \implies a_n$ diverges to $\infty$ edited title Apr17 revised Infinite series $\sum_{n=1}^{\infty}nx^{n+1}$ does not comply to any of my (known) tests edited title Apr17 revised Showing that $\sum\limits_{n=1}^{\infty} (a_1+2a_2+…+na_n)/n(n+1) = \sum\limits_{i=1}^n a_n$ edited title Apr17 revised How can I find if $\sum_{n=1}^\infty {n! \over 10^n}$ converges or diverges? edited title Apr17 revised Proof that $\lim \frac{a_n}{1+a_n^2} = 0 \implies \lim a_n = 0$ deleted 2 characters in body; edited title Apr17 revised Sum of digits of $11\dots 11^2$ where $11\dots 11$ is a 1992 digit number with all digits $1$ edited tags Mar28 revised Counting the number of integers $i$ such that $\sigma(i)$ is even. edited tags Mar28 revised Counting the number of integers $i$ such that $\sigma(i)$ is even. edited tags Mar26 revised Proof : Limit of a sequence edited tags Mar19 revised Aproximation of $a_n$ where $a_{n+1}=a_n+\sqrt {a_n}$ more informative title. Mar19 revised Aproximation of $a_n$ where $a_{n+1}=a_n+\sqrt {a_n}$ edited tags Mar13 revised Big O notation and limits edited tags Mar11 revised Inequality between real numbers $a^ab^bc^c<(abc)^{\frac{a+b+c}{3}}$ added 199 characters in body Feb11 revised Maths question from an IQ test edited tags Feb10 revised Comparing $\pi^{e}$ and $e^{\pi}$ added 48 characters in body Jan30 revised Convergent or Divergent? $\sum_{n=1}^\infty\bigl(2^{\frac1{n}}-1\bigr)$ added 64 characters in body Jan29 revised Proving that $\sin1$(radian) is irrational without using Taylor Series Expansion. edited tags Jan29 revised Proving that $\sin1$(radian) is irrational without using Taylor Series Expansion. edited tags Jan27 revised Can't figure out $O(n \log n)$ divide-and-conquer algorithm edited tags