Mathematics
user avatar
user avatar
user avatar
boojum
  • Member for 1 year, 4 months
  • Last seen this week
  • lately, spending time in P^2{C}
Profile Activity
Stats
2,218
reputation
173k
reached
339
answers
0
questions
Communities
About

something of a generalist -- I've worked in academia and in industry over a long time now and have taught some mathematics, physics, and astronomy at a variety of places; I have quite a few interests (maybe too many) and have never settled on any particular specialty

even after all this time, I still frequently feel ignorant and study as often as I can

Badges
View all badges
2
gold badges
5
silver badges
19
bronze badges
Top tags
View all tags
42
Score
70
Posts
21
Posts %
35
Score
66
Posts
19
Posts %
29
Score
99
Posts
29
Posts %
20
Score
58
Posts
17
Posts %
16
Score
38
Posts
11
Posts %
14
Score
29
Posts
9
Posts %
Top posts
View all questions and answers
All Questions Answers
Score Newest
answer
10
If $a^{2}+b^{2} \leq 4$, prove that $a+b \leq 4$
Aug 23, 2021
answer
5
How to get $\int_0^∞\frac{dx}{(x^2+1)^n}=\frac{(2n-3)!!}{(2n-2)!!}\frac{\pi}{2}\overset{?}=\frac{\sqrt{\pi}}{2}\frac{Γ(n-\frac{1}{2})}{Γ(n)}$?
Feb 16
answer
5
How to find the speed of a bob when its wire has reduced its radius?
Feb 6, 2021
answer
4
Find absolute minimum of $f(x,y,z,w) = x^2 y + y^2 z + z^2 w + w^2 x$ on $S = \{x>0,y>0,z>0,w>0, xyzw=1\} \subset \mathbb{R}^4$
May 7, 2021
answer
3
Need help with Euclidean geometry
May 7
answer
3
Books to pass the time
Jun 21, 2021
answer
3
Euler's method, Multiple choice does not match my answer.
Aug 2, 2021
answer
3
Distribution of irrational or transcendental numbers
Feb 5, 2021
answer
3
Find the quadratic equation with real coefficients and solutions $x_1,x_2$ if you know that $\Delta =b^2-4ac=-36$ and $x_1+x_2=6m$
Dec 3, 2021
answer
2
Hypocycloid problem. Show that the portion of every tangent line in the first quadrant is equal 1.
May 21

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.