# אליהו צלע

less info
reputation
1936
bio website location age member for 2 years, 3 months seen 2 days ago profile views 1,293

An expert is a man who has made all the mistakes, which can be made, in a very narrow field. (Niels Bohr)

# 263 Posts

 Mar2 answered How do i solve delta epsilon proofs for quadratic equations? Mar1 answered Continuous function? Feb12 answered If $f,g$ are uniform continuous with $f$ bounded, then $fg$ is uniform continuous. Feb7 asked Why 'closed differential forms' are called 'closed'? Feb7 answered Mathematical equivalent of Feynman's Lectures on Physics? Jan25 answered A Tricky Limit: $\lim \limits_{x\rightarrow 0} \frac{9^x-5^x}{x}$ without L'Hospital Jan14 answered Proof that $x^k < k^x$ Jan7 asked Growth Rate. A precise definition. Jan2 answered Solution verification: solving $\sqrt{x-4}-\sqrt{x-5}+1=0$ Dec30 answered If $f:\mathbb{R}\to\mathbb{R}$ is continuous and $f(x)\neq x$ for all $x$, must it be true that $f(f(x))\neq x$ for all $x$? Dec30 answered Taylor series for $e^z\sin(z)$ Dec28 answered Differentiation of exponential function? Dec28 answered properties of positive definite matrix Dec24 asked The problem of the most visited point. Nov17 answered $|a_n - a_m| \le \sum_{k=m}^{n-1} |a_{k+1} - a_k|$ Nov16 answered Why is $\sin(x) = \sin(180^{\circ}-x)$ Nov12 answered Show that $\log(e^{x_1} + e^{x_2})$ is convex. Nov12 answered Proving $proj_{proj_{\vec u} \vec v} \vec v=proj_{\vec u} \vec v$ Nov11 answered Frobenius Norm with Unitary Operators Nov9 answered Prove that $\binom{n}{r} + \binom{n}{r+1} = \binom{n+1}{r+1}$