Christian Blatter
Reputation
107,963
377/400 score
3 67 196
Impact
~2.0m people reached

• 4 helpful flags
• 3,587 votes cast

# 107,963 Reputation

160 yesterday
 +50 15:55 5 events $x,y,z \geqslant 0$, $x+y^2+z^3=1$, prove $x^2y+y^2z+z^2x < \frac12$ +45 12:41 4 events Converse of a theorem: If the curl of a vector field is not zero does it implies it is not conservative? +30 19:33 3 events 100th derivative of $e^{-x^2}$ at point $0$ +25 18:52 2 events Show that $f$ is uniformly continuous $\iff$ $\bar d(f(x_n),f(y_n)) \to 0$ for all sequences $\{x_n\}, \{y_n\}$ in $X$ with $d(x_n, y_n) \to 0$. +10 14:37 upvote Divisibility for 7
150 2 days ago
 +85 13:35 8 events If $f(x) = ax^2+bx+c$ and $f(0) = 0$ and $f(2) = 2\;,$ Then minimum value of $\int_{0}^{2}|f'(x)|dx$ +45 12:39 4 events Is $\frac{1}{x^2}$ Lebesgue integrable while $\frac{1}{x}$ is not? +10 20:14 upvote Why is Dirichlet function not Riemann integrable, and Thomae's function is? +10 05:53 upvote Why is the discrete formulation of the fundamental theorem of integral calculus correct?
145 May 23
 +35 12:56 3 events Why is the discrete formulation of the fundamental theorem of integral calculus correct? +25 23:13 2 events How can I prove that the n-dimensional hyper-rectangle is closed? +25 15:48 2 events Proof of the reflective property of the ellipese +10 20:47 upvote All non-isomorphic graphs with chromatic number 4 +10 19:08 upvote What is the difference between Cauchy and convergent sequence? +10 15:39 upvote Do men or women have more brothers? +10 14:17 upvote Proving linearity from diferentiability +10 11:25 upvote Show that no line with a y-int of 10 will ever be tangential to the curve with $y=3x^2+7x-2$ +10 11:07 upvote let F be velocity vector field of fluid on $R^3$ defined by F(x,y,z)=-yi+xj.
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