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1d
comment Is there any wide sense but introductory Book series/websites for mathematics literature? (just to be familiar with)
@WillR: I agree it should be mentioned. I didn't mention it before because it was published after my answer was written. Feel free to edit it into the answer!
1d
comment Solve integral weird upper bound approaching zero.
... and only then can we answer you why you should compute $\lim_{h\to 0} g(h)/h$ instead of $\lim_{h\to 0} g(h)$.
1d
comment Solve integral weird upper bound approaching zero.
@Christoph: can you explain your comment more? My answer says that if you were to compute $\lim_{\delta t\to 0} p(0,t + \delta t)$ from your definition you would get $0$. The natural way to arrive at $\mu f(0,t)$ is from computing $\lim_{\delta t \to 0} \frac{p(0,t+\delta t)}{\delta t}$. In other words, what you want to get and what you were computing are two different things. If you are convinced that $\mu f(0,t)$ is the correct answer, then you need to tell us what exactly $\mu f(0,t)$ is (what the answer represents) as well as what you want to compute (what you think the question is)
2d
answered Solve integral weird upper bound approaching zero.
Apr
12
reviewed Close Solving the integral of $sin^n(x)$
Apr
12
reviewed Close Importance of guide/advisor in a PhD
Apr
12
reviewed Close Not so easy inequality: $(x+1)(y+1)(z+1)\ge8$
Apr
12
reviewed Leave Open Different number field discriminants in Sage and Magma
Apr
12
reviewed Close Linear span of subspaces
Apr
12
comment $\lim_{x \rightarrow 0} \frac{\sin(x)}{x}$ using $\epsilon - \delta$ definition
What are you allowed to use? Are you allowed the Taylor expansion of $\sin$ at $0$? Are you allowed that $\sin(0) = 0$ and that $\frac{\mathrm{d}}{\mathrm{d}x} \sin(x) |_{x = 0} = 1$ and that $\sin$ is differentiable?
Apr
12
comment How to numerically solve a Green's function using mathematica?
Mathematica specific questions should be asked at mathematica.stackexchange.com ; I've flagged for Moderator attention to migrate.
Apr
12
comment What is the Hilbert curve's equation?!
@Axoren: I think Mariano was being somewhat facetious. Some people vastly prefer to consider a curve as its image, and not tied to any particular parametrization. Some other people refer to a specific parametrization when they speak of a curve. Mariano wrote his comment assuming the former, the question was originally asked assuming the latter.
Apr
11
revised Does there exist a bijection of $\mathbb{R}^n$ with itself such that the forward map is connected but the inverse is not?
added 106 characters in body
Apr
11
comment Does there exist a bijection of $\mathbb{R}^n$ with itself such that the forward map is connected but the inverse is not?
@MichaelHardy: you may be right. Let me ask there and see.
Apr
8
comment Striking applications of integration by parts
@ArkaKarmakar: It == "Integrating by parts".
Mar
25
revised Can we prove uniformization by solving the Yamabe problem directly?
added 331 characters in body
Mar
25
answered Can we prove uniformization by solving the Yamabe problem directly?
Mar
16
awarded  Custodian
Mar
16
reviewed No Action Needed Is $y[n]=x[n]-x[n-1]$ invertible system?
Mar
7
awarded  Enlightened