5,036 reputation
618
bio website mrcactu5.herokuapp.com/…
location New York, NY
age 29
visits member for 3 years, 8 months
seen 19 hours ago

Data Scientist @ Explorer Media


Apr
22
answered How prove this $|S_{1}|-|S_{2}|\le 2^{2n}\binom{2n}{n}$
Apr
22
comment A question about improper integral
Make the change of variables $y=ax+c$. The bounds of integration also change.
Apr
22
comment How prove this $|S_{1}|-|S_{2}|\le 2^{2n}\binom{2n}{n}$
If $a=0,b=4n+1$ then $|S_1| =|S_2|$ right? Then where values of $a,b$ should have large differences $|S_1|-|S_2|$?
Apr
22
reviewed Reject suggested edit on Prove a real valued function is increasing
Apr
21
comment wedge product of $m$ vectors in $\mathbb{R}^n$
If we augment the matrix to $[v_1|\dots|v_m|0_{m+1}|\dots|0_{n}]$, is it also the product of the nonzero eigenvalues?
Apr
21
revised wedge product of $m$ vectors in $\mathbb{R}^n$
wedge product -- corrected notation
Apr
21
reviewed Approve suggested edit on A question of greatest common divisor
Apr
21
asked wedge product of $m$ vectors in $\mathbb{R}^n$
Apr
21
reviewed Approve suggested edit on Computing coefficient of $x^n$
Apr
21
reviewed Approve suggested edit on How find the $AP+\frac{1}{2}BP$ minmum value
Apr
15
answered Are there surfaces with more than two sides?
Apr
6
reviewed Approve suggested edit on Does vigorous exercise affect concentration?
Mar
15
comment the “unit speed” anlogue of the evolute of the curve
Okay. In my graphic, I naïvely averaged the two normals $\frac{1}{2}(N_1 + N_2)$, allowing me to smoothly deform the contour and yet retain the overall shape. All my angles are very "bent" - close to $90^\circ$ - and so $N_1 \cdot N_2 \approx 0$.
Mar
14
revised the “unit speed” anlogue of the evolute of the curve
deleted 380 characters in body; edited tags; edited title
Mar
14
comment the “unit speed” anlogue of the evolute of the curve
@JosephZambrano the square is a misleading example. if we rescale a polygon we need to specify a center and the rescaling changes depending on our choice. i need to move around the perimeter and carve out thickness $\varepsilon$ from the sides.
Mar
14
comment the “unit speed” anlogue of the evolute of the curve
@JosephZambrano you draw a polygon in the plane with a thick smudgy pen. what are the coordinates of the interior?
Mar
13
asked the “unit speed” anlogue of the evolute of the curve
Mar
10
reviewed Reject suggested edit on A quotient $\mathcal{O}/\mathfrak{a}$ of a Dedekind domain is principal (Neukirch exer 1.3.5)
Feb
25
answered Automorphisms of spin groups over finite fields, even dimension
Feb
20
reviewed Reject suggested edit on Distribution of higher powers than 2 of a gaussian distribution