1,263 reputation
1821
bio website
location Germany
age 21
visits member for 2 years, 1 month
seen Dec 11 at 15:27

maths student, hobbyist number theorist and dreamer


Nov
3
awarded  Yearling
Oct
15
comment TeX editor with instant preview
@Moronplusplus I have probably deleted that file off the server, I can reupload it if you like.
Sep
30
awarded  Explainer
Sep
24
awarded  Autobiographer
Jul
3
comment Why $2x$? Can't it be $x$?
What about $x=2.5$ or $x=\pi$? Addition in $\mathbb R$ cannot be defined via a sum of $n$ summands easily.
Jul
2
awarded  Curious
Feb
9
revised $\theta_1 + \theta_2 = -35.5$ how to find the values of those $\theta$s?
fixed latex
Feb
9
suggested approved edit on $\theta_1 + \theta_2 = -35.5$ how to find the values of those $\theta$s?
Dec
15
comment Prime decomposition over the real numbers?
Remember that I basically "choose" my prime elements and do not acquire them via divisibility rules - $\frac{1}{x}$ can just be defined as one, or else be the product of other elements in $P$.
Dec
15
comment Prime decomposition over the real numbers?
@edit - why would it give problems to have $\frac{1}{x_i}=x_i^{-1}\in P$? I really dont see that argument... Sorry if these objections are useless, but im trying to understand the matter.
Dec
15
comment Prime decomposition over the real numbers?
Sorry for taking away the accept for now, I would like to know: am I really trying to show that? The fact that each number is a unit gives problems usually, since each element $x$ can be written as $x y y^{-1}$ - I take out this case purposefully
Dec
15
asked Prime decomposition over the real numbers?
Nov
22
awarded  Favorite Question
Nov
9
awarded  Notable Question
Nov
3
awarded  Yearling
Sep
1
comment Jigsaw Puzzle Help
$20''\times 27'' = 540$ sq inches Equally dividing that over 1000 pieces gives us $0.54$ sq inches per piece. Assuming that the pieces are square, we have a borderlength of $\sqrt{0.54}=0.735''$ per piece. The amount of pieces along one border is $27/0.735=36.73$ - This is not even close to an integer, meaning our assumption (pieces are square and equally in size) was incorrect - we need to know that in order to give qualified answers ;)
Sep
1
comment $\pi$ in arbitrary metric spaces
@Arjang aside from that this is the first question ever on Math.SE that has $\pi$ points? I guess not.
Aug
13
comment Solving Linear ODE using matrices
it means that $\begin{pmatrix}\dot x\\\dot y\end{pmatrix}=A\begin{pmatrix}x\\y\end{pmatrix}=\begin{pmatrix}y\\x\end{pmatrix}$
Aug
5
comment Mathematical notation for redefined set?
Yes. Write $W:=\{1,3,5,2,7,9,10,18\}$ and $W':=\{7,9,10,18\}$ and everyone will know what your intention is.
Aug
5
comment Mathematical notation for redefined set?
This is generally accepted. Use $:=$ for definitions and you have to care about ambiguity. You could even define your own notation, for example $W_{>5}$, however $W'$ is totally fine.