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| bio | website | von-eitzen.de/math/tntrep.xml |
|---|---|---|
| location | Bonn, Germany | |
| age | 47 | |
| visits | member for | 8 months |
| seen | 14 mins ago | |
| stats | profile views | 3,273 |
I did study math and had a knack for it, but I am sooo out of that business now ...
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2d |
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If $f$ is even and $y'=f(y)$ then $y$ is odd @GitGud First of all, if it doesn't, the claim is false ;) |
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2d |
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How to calculate large exponents by hand? @TrevorWilson Sigh - do people never nag you with questions about lottery probabilities (which is "6 out of 49" over here)? |
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How to calculate large exponents by hand? Of course $2^{15}=32768$ is one of those number known by heart (which for me also include $3^{11}=177147$ and ${49\choose 6}=13983816$ for other reasons), though this is of course a consequence of the ubiquity of that number in computer programming. |
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If $f$ is even and $y'=f(y)$ then $y$ is odd added 1 characters in body |
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If $f$ is even and $y'=f(y)$ then $y$ is odd added 50 characters in body |
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2d |
answered | If $f$ is even and $y'=f(y)$ then $y$ is odd |
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Special binary string added 468 characters in body |
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Special binary string @JFNJr To clarify again: $c=1$ would then count as "a couplpe of ones that overlap"? |
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answered | Special binary string |
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Special binary string So if you fold $abcdef$, then $a$ and $f$, $b$ and $e$, $c$ and $d$ overlap. What in the odd case $abcde$? $a$ and $e$, $b$ and $d$ - and $c$ with itself or is $c$ ignored? |
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May 21 |
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Find generator of principal ideal @vadim123 "A unit" would be the correct answer if we replace $9$ with $7$, for example, so I didnÄt want to exclude it lightheartedly. |
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May 21 |
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Find generator of principal ideal added 139 characters in body |
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May 21 |
answered | Find generator of principal ideal |
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May 21 |
answered | showing that the Euler's number is irrational |
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May 21 |
revised |
Simple Derivative $\frac{x}{\ln x}$ LaTeX markup |
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May 21 |
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epsilon delta question limit questions $\delta=\min\{\delta_1,\delta_2\}$ is precisely the most easily available and "optimal" choice to guarantee that $\delta>0$ and also that $|x-y|<\delta$ implies both $|x-y|<\delta_1$ and $|x-y|<\delta_2$. |
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May 21 |
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epsilon delta question limit questions added 1 characters in body |
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May 21 |
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Suppose that $G$ is nonabelian. Must $|\mathrm{Out}(G)| = |\mathrm{Aut}(G)|/|\mathrm{Inn}(G)|$? What is your definition of $\operatorname{Out}(G)$? |
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May 21 |
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REVISTED$^1$: Circumstantial Proof: $P\implies Q \overset{?}{\implies} Q\implies P$ Note that in this particular case the statement $P\Rightarrow Q$ is in fact wrong. There are diagonal(izable) matrices with non-distinct eigenvalues. |
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May 21 |
answered | If the limit as $x$ approaches $3$ of $x^2$ is $9$, how do I use the epsilon delta definition to prove this? |
