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seen Oct 15 at 18:10

"Meanwhile, I was doing well in mathematics. It was fun to solve mathematical problems, but in a deeper sense mathematics was boring and empty because for me it had no purpose. If I had worked on applied mathematics I would have contributed to the development of the technological society that I hated, so I worked only on pure mathematics. But pure mathematics was only a game. I did not understand then, and I still do not understand, why mathematicians are content to fritter away their whole lives in a mere game."


Oct
18
awarded  Great Answer
Oct
9
awarded  Popular Question
Oct
9
comment how we can check this integral $\displaystyle\int_{0}^{1}\left(\frac{\sin x}{x}\right)^2{\rm d}x$ converges?
@Kainui That reasoning only works if it was the integral itself that was being squared.
Oct
9
awarded  Reviewer
Oct
9
reviewed Close Is 1 divided by 3 equal to 0.333…?
Oct
9
reviewed Leave Open Is the Gamma Function a jointly sufficient statistic?
Oct
9
reviewed Close Find the x-coordinate of the center of mass of a half cylinder.
Oct
9
reviewed Leave Open Challenge on Some Language and PDA
Oct
9
reviewed Leave Open Divergence of a radial $1/r$ vector field
Oct
9
reviewed Close Find the z- transform of y [n] and its region of convergence (ROC)
Oct
9
reviewed Close how to interpret this norm
Oct
7
comment Calculating a ``density of states''
The asymmetrical quote marks in the title are causing me great distress.
Oct
3
comment Why is the weak operator closure of a commutative $\boldsymbol{C^*\!\!\!\!-}$algebra also commutative?
@joker Click the up arrow near each answer that is helpful. You can also click the checkmark on the answer you think is best. This rewards those answerers with reputation points.
Oct
2
comment If $f,g$ are $2$ onto homomorphisms, $\exists$ $y \neq e \in M$ such that $f(y)=g(y)$.
The remark in the parenthetical seems too important to be in a parenthetical, imo. It made me very confused when I first read the problem -- I thought it was saying "not necessarily 1-1", which makes no sense.
Sep
30
awarded  Explainer
Sep
30
comment What are some good question and answer websites for math?
There's a college sub-forum on artofproblemsolving.com that's reasonably active.
Sep
28
comment What is the precedence of the limit operator?
I don't think so. Using parenthesis makes everything clear.
Sep
28
revised What is the precedence of the limit operator?
edited title
Sep
28
comment What is the precedence of the limit operator?
Your first expression is very ambiguous. I don't think there's a set precedence. Everyone just uses parenthesis so there's no confusion.
Sep
25
comment CP(2) = SU(3)/U(2)?
Hi. Thanks for the great answer. A tip: you can use \langle and \rangle to make angle brackets. If you use <, LaTeX thinks you're writing an inequality sign, which makes the typography look weird.