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 Yearling
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Apr
13
revised Is basis change ever useful in practical linear algebra?
title/tags improvement
Apr
13
suggested approved edit on Is basis change ever useful in practical linear algebra?
Apr
13
revised Would an infinite random sequence of real numbers contain repetitions?
title improvement
Apr
13
comment Would an infinite random sequence of real numbers contain repetitions?
infinite like countably infinite? uncountably infinite? which uncountable infinite then?
Apr
13
suggested approved edit on Would an infinite random sequence of real numbers contain repetitions?
Apr
6
comment Are Euclidean domains exactly the ones which we can define “mod” on?
Actually the congruence relation can be defined on a lot of algebraic structures, for the quotient group $G / H$ (where $H \leq G$) is exactly the quotient set of the congruence relation $a mod b \iff ab^{-1} \in H$
Mar
9
awarded  Yearling
Mar
9
revised Explain why the following conjecture for $f(x)=[x]+(x-[x])^{[x]}$ is not correct?
corrected typo
Mar
9
comment Explain why the following conjecture for $f(x)=[x]+(x-[x])^{[x]}$ is not correct?
What did you try to (dis)prove them?
Mar
9
suggested approved edit on Explain why the following conjecture for $f(x)=[x]+(x-[x])^{[x]}$ is not correct?
Mar
9
comment Linear dependent or independent
Change your question to that and add what you've tried
Mar
9
suggested rejected edit on Number of ways of shuffling cards such that $i^{th}$ card is not in the $i^{th}$ position
Mar
9
comment Linear dependent or independent
Welcome to math.SE: since you are new, I wanted to let you know a few things about the site. In order to get the best possible answers, it is helpful if you say in what context you encountered the problem, and what your thoughts on it are; this will prevent people from telling you things you already know, and help them give their answers at the right level.
Mar
9
awarded  Citizen Patrol
Mar
9
answered Is it possible to define a monotonically increasing sequence on $\mathbb Z$ in such a way that the sequence is $\ldots,-3, -2, -1, 0, 1, 2, 3,\ldots$
Mar
9
comment Formula for the square root of a number?
This algorithm provides an approximation, you should address this in your answer
Feb
5
awarded  Enthusiast
Jan
22
comment $H,K$ be subgroups of a group $G$ such that $G$ is isomorphic with $H \times K$ ; then is $H$ normal in $G$ ?
@DanielFischer you're right, I didn't see it
Jan
21
answered $H,K$ be subgroups of a group $G$ such that $G$ is isomorphic with $H \times K$ ; then is $H$ normal in $G$ ?
Jan
20
revised What's wrong with this use of Taylor's expansions?
added 1 character in body