Hagen von Eitzen
Reputation
384/400 score
 27m answered Dense sets and Empty Interior 3h answered Proving Welsh-Powell Algorithm 4h answered Prove: As $n$ grows if $a_{n+1}-a_n$ converges so does $\frac{a_n}n$ 18h answered Have you seen these integer factorization algorithms before? 18h answered Showing a certain cyclotomic polynomial must split 22h answered Number of functions for $(f(x))^2=x^2$ 22h answered Last digits of sum $n!+m!$ 22h answered How calculate: $\lim \limits_{(x,y) \to (0,0)} \frac{ln(1+2x^2+4y^2)}{arctan(x^2+2y^2)}$? 22h answered Probability to get from point A to point B. 23h answered Is the mapping $f\colon\mathbb{R}\to\mathbb{R}$ defined by $f(x)=5x^3+3$ onto? 23h answered A real $2 \times 2$ matrix $M$ such that $M^2 = \tiny \begin{pmatrix} -1&0 \\ 0&-1-\epsilon \\ \end{pmatrix}$ , then : 1d answered Finding roots in finite fields. 1d answered Find the least degree Polynomial whose one of the roots is $\cos(12^{\circ})$ 1d answered Let $f\colon [a,b]\to\mathbb R$ is continuous and $G(x,t)=t(x-1)$ when $t\leq x$ and $x(t-1)$ when $t\geq x$. 1d answered Finding the sum of special multiplications 1d answered Suppose $A$ is a subset of $B$ and $B$ is a subset of $C$ and $A$ is equinumerous with $C$. Prove $B$ is equinumerous with $C$. 1d answered question regarding group permutation computation 1d answered Power to which 7 is raised to produce a number starting with 2015… 1d answered Proof of linear independence of non-empty subsets 1d answered Prove that $F=\left(-x^2+2\right)\cdot \cos\left(x\right)+2x\sin\left(x\right)$ don't have limit