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seen Apr 19 at 7:13

Mar
30
accepted Computing the degree of a finite morphism $\mathbb{P}^n\to \mathbb{P}^n$
Mar
30
answered Ring homomorphism with field as image, is the pre-image also a field?
Mar
8
comment Weak derivative: Showing a function is equal to zero a.e.
@Algebra: you can always extend $\phi$ to a function defined on all of $\mathbb{R}$ simply by setting $\phi\equiv 0$ outside of $(a,b)$. This function remains compactly supported and smooth.
Mar
6
comment Closure of an open ball equal to the closed ball
One very common place you find this property is in non-archimedean fields, if you know what those are. For instance, in the $p$-adic numbers $\mathbb{Q}_p$ for $p$ a prime number.
Mar
1
reviewed Approve suggested edit on Finding cosets in $\mathbb{Z}$.
Mar
1
comment How to handle rounding in uneven number bases?
Consider for example the ternary number $11$. The difference between $11$ and $10$ is $11-10 = 1$, whereas the difference between $11$ and $20$ is $20 - 11 = 2$. Thus it would make sense to round down for a number ending in $1$.
Mar
1
reviewed Approve suggested edit on Different methods of evaluating $\int\sqrt{a^2-x^2}dx$:
Mar
1
revised Weak convergence in a Hilbert Space
added extra remark
Mar
1
answered Weak convergence in a Hilbert Space
Mar
1
reviewed Approve suggested edit on minimizing the value of a simple expression
Mar
1
reviewed Reject suggested edit on Limit of $\frac{f'(x)}{g'(x)}$ & $g'(x) \neq 0$ in Hypotheses of L'Hospital's rule.
Mar
1
revised Approximation by a polynomial in $C^1$ norm
Modified tags
Mar
1
comment Approximation by a polynomial in $C^1$ norm
Looks good to me!
Mar
1
reviewed Close How to be a successful math undergraduate student?
Mar
1
reviewed Close Filling up space with irrational fractional parts
Mar
1
reviewed Reject suggested edit on Clarifying the notion fo fiberwise cone
Mar
1
reviewed Reject suggested edit on Limit of $\frac{f'(x)}{g'(x)}$ & $g'(x) \neq 0$ in Hypotheses of L'Hospital's rule.
Mar
1
revised Algorithms for non-random but equidistributed ways to fill up a Cartesian plane
Replaced inapplicable random-graph tag with the random tag.
Mar
1
comment Algorithms for non-random but equidistributed ways to fill up a Cartesian plane
Also, if you're interested, another way of producing equidistributing sequences in the unit square is discussed in this problem.
Mar
1
comment Algorithms for non-random but equidistributed ways to fill up a Cartesian plane
For your first point, about notation. I was reading it to mean $x_i$ is a sequence of vectors $x_i = (x_{i1}, x_{i2})$. For your second point, about the Weyl sequence, I agree with you something seems off, and in fact I would say that about all of the sequences listed, but not having the book you link to makes it hard to say for sure. You might try to modify the definitions by replacing $2^{q_{ij}}$ with, say, $b^{q_{ij}}$ for irrational bases $b$ and see what you get.