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bio website mrcactu5.herokuapp.com/…
location New York, NY
age 29
visits member for 3 years, 7 months
seen 6 hours ago

Data Scientist @ Explorer Media


May
3
comment Is there a base in which $1 + 2 + 3 + 4 + \dots = - \frac{1}{12}$ makes sense?
@MarianoSuárez-Alvarez That's why I mention the p-adic numbers where a number like $\dots5$ makes sense. Here $10$ is composite so there may not be 10-adic numbers, if you like, replace it with $7$.
May
3
asked Is there a base in which $1 + 2 + 3 + 4 + \dots = - \frac{1}{12}$ makes sense?
May
2
comment Probabilistic proof that $\sum \binom{n}{k}^{-1} > \frac{n}{2^n}$
Assuming this IMO problem and $\boxed{2^k > k^2}$ we can (im)prove the bound, yes :-)
May
2
comment Probabilistic proof that $\sum \binom{n}{k}^{-1} > \frac{n}{2^n}$
Is that equality ? The link is United States TST 2000
May
1
revised How prove this inequality $\sum_{k=1}^{n}\frac{2k-1}{k\binom{n}{k}}\ge \frac{n}{2^{n-1}}$
added 92 characters in body
May
1
reviewed Approve suggested edit on submodular-like functions on $\mathbb{R}$
May
1
revised How prove this inequality $\sum_{k=1}^{n}\frac{2k-1}{k\binom{n}{k}}\ge \frac{n}{2^{n-1}}$
improved estimate
May
1
revised How prove this inequality $\sum_{k=1}^{n}\frac{2k-1}{k\binom{n}{k}}\ge \frac{n}{2^{n-1}}$
improved estimate
May
1
answered How prove this inequality $\sum_{k=1}^{n}\frac{2k-1}{k\binom{n}{k}}\ge \frac{n}{2^{n-1}}$
May
1
comment Intersection between sphere and ellipsoid
Scicomp.Stackexchange.com
May
1
revised Probabilistic proof that $\sum \binom{n}{k}^{-1} > \frac{n}{2^n}$
added 194 characters in body; added 57 characters in body; added 2 characters in body
May
1
asked Probabilistic proof that $\sum \binom{n}{k}^{-1} > \frac{n}{2^n}$
Apr
28
revised How prove this $|S_{1}|-|S_{2}|\le 2^{2n}\binom{2n}{n}$
added 629 characters in body
Apr
28
comment counting lattice paths with turns
possibly: math.stackexchange.com/questions/477982/counting-bit-flips?rq=1
Apr
28
asked counting lattice paths with turns
Apr
27
comment Stokes theorem and Sobolev spaces.
@yess what are situations where Stokes theorem fails? I am curious
Apr
27
comment Analytic caustics for 3D objects
try: physics.stackexchange.com ? or scicomp.stackexchange.com
Apr
27
revised Demonstrating Continuity Properties of $f(x) = \sum_{n=1}^\infty [a_n H(x - x_n)]$
added 185 characters in body
Apr
27
answered Understanding conditional entropy intuitively $H[Y|X=x]$ vs $H[Y|X]$
Apr
26
comment Demonstrating Continuity Properties of $f(x) = \sum_{n=1}^\infty [a_n H(x - x_n)]$
@user1770201 It looks good. Another case to consider is $\mathbb{Q}\subseteq \mathbb{R}$ since the rational numbers are countable. This could be bad since the rationals are dense $\overline{\mathbb{Q}} = \mathbb{R}$. See enumerating the rationals and Produce an explicit bijection between rationals and naturals?