14,126 reputation
33384
bio website sites.google.com/site/rknmodn
location Halifax, Canada
age 32
visits member for 4 years, 5 months
seen Feb 26 at 5:52

This account is no longer in use.


Sep
5
comment Solving a system of equations using modular arithmetic modulo 5
Print(Concatenation([":",")"]),"\n");
Sep
5
comment How to find perpendicular vector to another vector?
Also, can you state which language the code is in?
Sep
5
answered Solving a system of equations using modular arithmetic modulo 5
Sep
4
asked Is there a better way to input an $n$-cycle in GAP?
Sep
3
answered An abelian group of a certain order
Sep
2
comment Find the sum of all 4-digit numbers formed by using digits 0, 2, 3, 5 and 8?
I know how you feel. But it is useful to know how to solve problems computationally too, even if it is just to check human-written solutions. (By the way, what language is this?)
Sep
2
revised Counting the number of subgraphs isomorphic with the following digraph
added 107 characters in body
Sep
2
answered Can This Matrix Proof Be Done Without the Definition?
Sep
1
answered Graph Theory / Networks … Triadic Closure and Strong/Weak Ties
Aug
31
comment In how many ways can three numbers be selected from the numbers $1,2,\dots,300$ such that their sum is divisible by $3$?
Aside from the above, I found yours the best answer. Right to the point!
Aug
31
comment In how many ways can three numbers be selected from the numbers $1,2,\dots,300$ such that their sum is divisible by $3$?
I'd say the answer to that question is yes (but I don't know what it is).
Aug
31
answered In how many ways can three numbers be selected from the numbers $1,2,\dots,300$ such that their sum is divisible by $3$?
Aug
31
comment In how many ways can three numbers be selected from the numbers $1,2,\dots,300$ such that their sum is divisible by $3$?
In the $(0,1,2)$ case, we can choose $100^3$ triples.
Aug
31
revised Factorising complex equations
edited tags
Aug
31
reviewed Reviewed Want to clarify whether I am correct or not, $\Phi(G) \subseteq \Phi(H)$?
Aug
30
revised A problem on limit
added 137 characters in body
Aug
30
comment For what $n$ can $\pm 1\pm 2\pm 3 … \pm (n-1) \pm n = n+1$?
That's an assertion. Could you add a proof of this assertion into this answer?
Aug
30
comment Find order of $xy$ provided $x^2=e, y^3=e$ and $yxy=xy^2x$
It's somewhat implicit that saying e.g. "$x^2=e$" implies $x$ has order $2$, otherwise we'd instead say "$x=e$" (or not even introduce $x$). Perhaps I'm a bit too pedantic (but this kind of detail matters e.g. for automated theorem proving). Anyway, the answer is fine so I better +1 it.
Aug
30
comment Find order of $xy$ provided $x^2=e, y^3=e$ and $yxy=xy^2x$
Hmm... it could be that $x=e=y$ too (in which case $xy=e$ has order $1$). The question doesn't say e.g. "the order of $x$ is $2$". [It must be a divisor of 3, though. So it's either $3$ or $1$.]
Aug
30
revised Find order of $xy$ provided $x^2=e, y^3=e$ and $yxy=xy^2x$
added 8 characters in body; edited tags; edited title